Rewrites specific kinds of lets where the return value of the `set!`
itself is meant to be used to just be `set!`s. Implemented at the let
rewrite level. Seems to work for Jak 2 so far.
Fixes#1854 .
* git: ignore vs build dir
* cmake: ditch `clang-cl` on windows in favor of actual `clang`
* build: suppress a significant number of warnings
* build: adjust workflows and vendor nasm
* docs: update docs to remove `clang-cl` mentions
* tests: move jak1 reference tests into their own folder
* tests: update offline tests to support multiple games
* tests: some additional fixes and multi-game handling
* tests: update reference tests
ManDude