This updates `fmt` to the latest version and moves to just being a copy
of their repo to make updating easier (no editing their cmake / figuring
out which files to minimally include).
The motivation for this is now that we switched to C++ 20, there were a
ton of deprecated function usages that is going away in future compiler
versions. This gets rid of all those warnings.
* game: restore windowed mode settings properly
* game: use the game version for saving settings/saves
* game: prevent windowed mode from being auto-centered on initial init
* game: save and restore window coordinates
* lint: formatting
* extractor: refactor and cleanup for multi-game support
* deps: switch to `ghc::filesystem` as it is utf-8 everywhere by default
* extractor: finally working with unicode
* unicode: fix unicode cli args on windows in all `main` functions
Tyler Wilding