Ports some of the custom PC port debugging code from Jak 1, such as the
entity debugger, Anim Tester X and part tester, to Jak 2 and gives the
PC menu code the same treatment Jak 1 received recently in #2216.
Some adjustments have been made to make things work in Jak 2 and some
stuff is still incomplete.
The majority of the default PC menu code has been left commented out in
preparation for @ManDude's plan to port the rest of the Jak 1 `pckernel`
features to Jak 2.
Also adds the code for `palace-scenes` to gsrc as that seems to have
been missed.
Notable things:
- This assert is hit when trying to save the pc-settings file, NYI
https://github.com/open-goal/jak-project/blob/e630b506903d7f7028dff89702be7f586c2120e7/game/kernel/common/Symbol4.h#L14
so right now settings aren't persisted. But RPC defaults to on
- The existing functions can probably be made generic based off the game
version, but I didn't spend time refactoring them yet as they aren't
really ready to be used in jak 2 yet (we have no screenshots for the
levels for example)