This adds hfrag, but with a few remaining issues:
- The textures aren't animated. Instead, it just uses one texture.
- The texture filtering isn't as good as at it could be.
I also cleaned up a few issues with the background renderers:
- Cleaned up some stuff that is common to hfrag, tie, tfrag, shrub
- Moved time-of-day color packing stuff to FR3 creation, rather than at
level load. This appears to reduce the frame time spikes when a level is
first drawn by about 5 or 6 ms in big levels.
- Cleaned up the x86 specific stuff used in time of day. Now there's
only one place where we have an `ifdef`, rather than spreading it all
over the rendering code.
The way we got/stored background matrices is a bit weird and full of
leftovers from the first attempts at porting renderers. This doesn't
work well with the Jak 2 "other camera" system where some stuff is
rendered with a different camera matrix.
This cleans most of it up. The exception is that the collide mesh
renderer and the additional sprite culling I added still need to peek at
some cached camera matrices.
This fixes the problem where etie uses the wrong matrices for "other
camera" levels. Now the "hole covers" go in the holes in the background
of the throne room.

I havn't tested it yet, but I can almost guarantee that atleast `goalc`
will not work in the slightest!
But the project is atleast fully compiling. My hope is to start
translating some AVX to NEON next / get `goalc` working...eventually.
Fixes some mistakes with merc draw modes. The glass in the palace level
no longer writes to the depth buffer (it's "water"):

Also fixes the one-frame flickers when level draw orders change. We
might be able to make this more efficient in the future, but this will
at least fix the frame with nothing drawn.
Favors the `lg` namespace over `fmt` directly, as this will output the
logs to a file / has log levels.
I also made assertion errors go to a file, this unfortunately means
importing `lg` and hence `fmt` which was attempted to be avoided before.
But I'm not sure how else to do this aspect without re-inventing the
file logging.
We have a lot of commented out prints as well that we should probably
cleanup at some point / switch them to trace level and default to `info`
level.
I noticed the pattern of disabling debug logs behind some boolean,
something to consider cleaning up in the future -- if our logs were more
structured (knowing where they are coming from) then a lot this
boilerplate could be eliminated.
Closes#1358
* tfrag3 data for merc2
* dma hooks for merc2
* start designing merc2 opengl, seems like the simple approach will be the best here
* before bone packing experiment
* fix up bones.gc
* use uniform buffer
* speedup, fix faces and eyes
* final fixes
* first pass at loader updates, tie is still bad
* temp
* improved loader
* run iop less often