Bug 1482809 - Move non-browser-specific parts of browser/components/enterprisepolicies to toolkit r=mkaply,Felipe

Differential Revision: https://phabricator.services.mozilla.com/D28309

--HG--
rename : browser/components/enterprisepolicies/EnterprisePolicies.js => toolkit/components/enterprisepolicies/EnterprisePolicies.js
rename : browser/components/enterprisepolicies/EnterprisePolicies.manifest => toolkit/components/enterprisepolicies/EnterprisePolicies.manifest
rename : browser/components/enterprisepolicies/EnterprisePoliciesContent.js => toolkit/components/enterprisepolicies/EnterprisePoliciesContent.js
rename : browser/components/enterprisepolicies/WindowsGPOParser.jsm => toolkit/components/enterprisepolicies/WindowsGPOParser.jsm
rename : browser/components/enterprisepolicies/macOSPoliciesParser.jsm => toolkit/components/enterprisepolicies/macOSPoliciesParser.jsm
rename : browser/components/enterprisepolicies/tests/EnterprisePolicyTesting.jsm => toolkit/components/enterprisepolicies/tests/EnterprisePolicyTesting.jsm
rename : browser/components/enterprisepolicies/tests/browser/browser_policies_basic_tests.js => toolkit/components/enterprisepolicies/tests/browser/browser_policies_basic_tests.js
rename : browser/components/enterprisepolicies/tests/browser/browser_policies_broken_json.js => toolkit/components/enterprisepolicies/tests/browser/browser_policies_broken_json.js
rename : browser/components/enterprisepolicies/tests/browser/browser_policies_enterprise_only.js => toolkit/components/enterprisepolicies/tests/browser/browser_policies_enterprise_only.js
rename : browser/components/enterprisepolicies/tests/browser/browser_policies_mistyped_json.js => toolkit/components/enterprisepolicies/tests/browser/browser_policies_mistyped_json.js
rename : browser/components/enterprisepolicies/tests/browser/config_broken_json.json => toolkit/components/enterprisepolicies/tests/browser/config_broken_json.json
extra : moz-landing-system : lando