Adding issue and merge request templates

.gitlab/issue_templates/Emergency Security Issue.md

+**NOTE** This is an issue template to standardise our process for responding to and fixing critical security and privacy vulnerabilities, exploits, etc.
+
+## Information
+
+### Related Issue
+- tor-browser#AAAAA
+- mullvad-browser#BBBBB
+- tor-browser-build#CCCCC
+
+#### Affected Platforms
+
+- [ ] Android
+- [ ] Desktop
+  - [ ] Windows
+  - [ ] macOS
+  - [ ] Linux
+
+### Type of Issue: What are we dealing with?
+
+- [ ] Security (sandbox escape, remote code execution, etc)
+- [ ] Proxy Bypass (traffic contents becoming MITM'able)
+- [ ] De-Anonymization (otherwise identifying which website a user is visiting)
+- [ ] Cross-Site Linkability (correlating sessions across circuits and websites)
+- [ ] Disk Leak (persisting session information to disk)
+- [ ] Other (please explain)
+
+### Involvement: Who needs to be consulted and or involved to fix this?
+
+- [ ] Applications Developers
+  - [ ] **boklm** : build, packaging, signing, release
+  - [ ] **clairehurst** : Android, macOS
+  - [ ] **dan** : Android, macOS
+  - [ ] **henry** : accessibility, frontend, localisation
+  - [ ] **ma1** : firefox internals
+  - [ ] **pierov** : updater, fonts, localisation, general
+  - [ ] **richard** : signing, release
+  - [ ] **thorin** : fingerprinting
+- [ ] Other Engineering Teams
+  - [ ] Networking (**ahf**, **dgoulet**)
+  - [ ] Anti-Censorship (**meskio**, **cohosh**)
+  - [ ] UX (**donuts**)
+  - [ ] TPA (**anarcat**, **lavamind**)
+- [ ] External Tor Partners
+  - [ ] Mozilla
+  - [ ] Mullvad
+  - [ ] Brave
+  - [ ] Guardian Project (Orbot, Onion Browser)
+  - [ ] Tails
+  - [ ] Other (please list)
+
+### Urgency: When do we need to act?
+
+- [ ] **ASAP** :rotating_light: Emergency release :rotating_light:
+- [ ] Next scheduled stable
+- [ ] Next scheduled alpha, then backport to stable
+- [ ] Next major release
+- [ ] Other (please explain)
+
+#### Justification
+
+<!-- Provide some paragraph here justifying the logic behind our estimated urgency -->
+
+### Side-Effects: Who will be affected by a fix for this?
+Sometimes fixes have side-effects: users lose their data, roadmaps need to be adjusted, services have to be upgraded, etc. Please enumerate the known downstream consequences a fix to this issue will likely incur.
+- [ ] End-Users (please list)
+- [ ] Internal Partners (please list)
+- [ ] External Partners (please list)
+
+## Todo:
+
+### Communications
+
+- [ ] Start an initial email thread with the following people:
+  - [ ] **bella**
+  - [ ] Relevant Applications Developers
+  - [ ] **(Optional)** **micah**
+    - if there are considerations or asks outside the Applications Team
+  - [ ] **(Optional)** Other Team Leads
+    - if there are considerations or asks outside the Applications Team
+  - [ ] **(Optional)** **gazebook**
+    - if there are consequences to the organisation or partners beyond a browser update, then a communication plan may be needed
+
+/cc @bella
+/cc @ma1
+/cc @micah
+/cc @richard
+
+/confidential
+
+Godspeed! :pray:

.gitlab/issue_templates/bug.md

+<!--
+* Use this issue template for reporting a new bug.
+-->
+
+### Summary
+**Summarize the bug encountered concisely.**
+
+
+### Steps to reproduce:
+**How one can reproduce the issue - this is very important.**
+
+1. Step 1
+2. Step 2
+3. ...
+
+### What is the current bug behavior?
+**What actually happens.**
+
+
+### What is the expected behavior?
+**What you want to see instead**
+
+
+
+### Environment
+**Which operating system are you using? For example: Debian GNU/Linux 10.1, Windows 10, Ubuntu Xenial, FreeBSD 12.2, etc.**
+**Which installation method did you use? Distribution package (apt, pkg, homebrew), from source tarball, from Git, etc.**
+
+### Relevant logs and/or screenshots
+
+
+/label ~bug

.gitlab/merge_request_templates/default.md

+## Merge Info
+
+<!-- Bookkeeping information for release management -->
+
+### Related Issues
+- tor-browser#xxxxx
+- mullvad-browser#xxxxx
+- tor-browser-build#xxxxx
+
+### Backporting
+
+#### Timeline
+- [ ] **Immediate**: patchset needed as soon as possible
+- [ ] **Next Minor Stable Release**: patchset that needs to be verified in nightly before backport
+- [ ] **Eventually**: patchset that needs to be verified in alpha before backport
+- [ ] **No Backport (preferred)**: patchset for the next major stable
+
+#### (Optional) Justification
+- [ ] **Emergency security update**: patchset fixes CVEs, 0-days, etc
+- [ ] **Censorship event**: patchset enables censorship circumvention
+- [ ] **Critical bug-fix**: patchset fixes a bug in core-functionality
+- [ ] **Consistency**: patchset which would make development easier if it were in both the alpha and release branches; developer tools, build system changes, etc
+- [ ] **Sponsor required**: patchset required for sponsor
+- [ ] **Localization**: typos and other localization changes that should be also in the release branch
+- [ ] **Other**: please explain
+
+### Merging
+- [ ] Merge to `tor-browser` - `!fixups` to `tor-browser`-specific commits, new features, security backports
+- [ ] Merge to `base-browser` - `!fixups` to `base-browser`-specific commits, new features to be shared with `mullvad-browser`, and security backports
+  - **NOTE**: if your changeset includes patches to both `base-browser` and `tor-browser` please clearly label in the change description which commits should be cherry-picked to `base-browser` after merging
+
+### Issue Tracking
+- [ ] Link resolved issues with appropriate [Release Prep issue](https://gitlab.torproject.org/groups/tpo/applications/-/issues/?sort=updated_desc&state=opened&label_name%5B%5D=Release%20Prep&first_page_size=20) for changelog generation
+
+### Review
+
+#### Request Reviewer
+
+- [ ] Request review from an applications developer depending on modified system:
+  - **NOTE**: if the MR modifies multiple areas, please `/cc` all the relevant reviewers (since gitlab only allows 1 reviewer)
+  - **accessibility** : henry
+  - **android** : clairehurst, dan
+  - **build system** : boklm
+  - **extensions** : ma1
+  - **firefox internals (XUL/JS/XPCOM)** : ma1
+  - **fonts** : pierov
+  - **frontend (implementation)** : henry
+  - **frontend (review)** : donuts, richard
+  - **localization** : henry, pierov
+  - **macos** : clairehurst, dan
+  - **nightly builds** : boklm
+  - **rebases/release-prep** : dan, ma1, pierov, richard
+  - **security** : ma1
+  - **signing** : boklm, richard
+  - **updater** : pierov
+  - **misc/other** : pierov, richard
+
+#### Change Description
+
+<!-- Whatever context the reviewer needs to effectively review the patchset; if the patch includes UX updates be sure to include screenshots/video of how any new behaviour -->
+
+#### How Tested
+
+<!-- Description of steps taken to verify the change -->