This adds more recognition for inlined vector functions to the
decompiler, which can clean up a bunch of ugly looking code/`rlet`s.

Unfortunately, this changes the numbering of ops in the decomp, since
all the vector instructions get combined in a single "operation" by the
decompiler. I really tried to avoid having this ever happen in the
decompiler and this is one of the few cases where it has. So I had to
update a bunch of type casts.
For that reason I haven't turned this on in Jak 2 yet, although I am
planning to do that at some point. (probably at the same time as porting
back a bunch of jak 3 improvements to jak 2)
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Co-authored-by: water111 <awaterford1111445@gmail.com>
Update the decompiler to use the new vf macros.
Also, fix a bunch of silly casting issues where accessing inline fields
with an offset of 0 would be better than a cast:

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Co-authored-by: water111 <awaterford1111445@gmail.com>
This PR does a few cleanups:
- improve method names/comments/flags for `enemy.gc` and a few other
files
- fix `new-stack-matrix0` not working for jak 3
- add `matrix-copy!` detection for jak 3
- add `vector-copy!` detection
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Co-authored-by: water111 <awaterford1111445@gmail.com>
This includes all the collision stuff needed to spawn `target`,
decompiles the sparticle code and adds some of the PC hacks needed for
merc to run (it doesn't work quite right and looks bad, likely due to a
combination of code copied from Jak 2 and the time of day hacks).
There are a bunch of temporary hacks (see commits) in place to prevent
the game from crashing quite as much, but it is still extremely prone to
doing so due to lots of missing functions/potentially bad decomp.
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Co-authored-by: water <awaterford111445@gmail.com>