Since Python 3.11, `FileLock` is thread-local by default, which causes
numerous issues with Rare because of numerous operations running in
`QThreads` and `QRunnables`. To work around it, add a monkey LGDLFS class
that uses a non-thread-local instance of `FileLock`. Since the monkey class
exists, implement a `unlock_installed` method for code clarity
* Add decorate `LegendaryCore.egl_sync` with `unlock_installed`
* Log that Rare's monkeys are in use
* Add function signature protocols based on `typing.Protocol`
The factories are also usable in Rare's code to create compatible
functions for the callbacks. If they there is no callback they just
log what is happening. It also removes the need for `typing-extentions`
module.
