Initial implementation of the `ocean-mid`, `ocean-far` and `ocean-near`
renderers for Jak 2.
There's still a few things to sort out, mainly:
- [x] ~Backwards compatibility with Jak 1. The only thing that currently
stands in the way of that is figuring out a clean way to "un-hardcode"
the texture base pointer in C++ without creating a completely separate
`OceanTexture` class for Jak 2. One thing I thought of would be
modifying `BucketRenderer`'s virtual `init_textures` method to also pass
the `GameVersion`, but I'm not sure if there's a better way.~
- [x] ~The sudden transition from `ocean-near` to `ocean-mid`. Not sure
why it's happening or how to fix it.~
- [x] The ocean has two new methods in Jak 2, `ocean::89` and
`ocean::79`, one of which seems to be related to time of day sky colors.
~Even without them implemented, the end result looks quite close, so we
may be able to skip them?~ `ocean::89` generates `ocean-mid` envmap
textures, so it will likely be required, but will not be handled right
now.
Reverted the VU prologue removals because it made the tests fail.
