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
* wip
* learning about colors
* gltf node stuff working
* cleanup
* support textures
* bvh generation seems reasonable
* tree layout
* frag packer, untested and doesnt do real stripping yet
* temp
* working collide frags
* handle bad inputs better
* clean up
* format
* include
* another include
* reorganize for release build use
* 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
* 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
* temp
* name the obvious ones
* un-pipelined the fast case in generic vu1
* generic2 dma
* pass2
* first pass at opengl
* many fixes
* fix hud, strip
* windows fix
* final tweaks
* memcard folder
* add missing include