Add Circuit padding simulator notes

add note to hackweek:main

Circuit-padding-simulator-notes.md

+# Tor Hackweek Project: Circuit Padding Simulator
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+Summary: The Tor circuit padding framework is under active use by researchers to improve padding defenses against website traffic fingerprinting, and onion service circuit fingerprinting. The simulator is in need of update to the latest Tor release, as well as in need of performance improvements, and a more accurate way to deal with time-based 
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+Skills Needed: Tor unit test framework, Tor C, maybe python
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+# Team:
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+* Mike (UTC-5)
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+