I encountered a strange audio problem where my input callback wasn't
being called at the desired frequency. I restarted and it went away.

See Cakelisp commit for reasoning behind this. Emacs sexp-awareness
and macros to the rescue!

* Added more to the Blender failure comment to help resolve issues
  when trying to build models
* Converted tabs to spaces in some cake files

* Added (bad) circular buffer set-up for reading input audio
* Pitch will be very noisily displayed on screen via the monkey's
vertical position
* Changed scripts slightly to use hot-reloading

It isn't real-time yet, but my simple calibration tests due seem to be
promising.

Also experimented with Tracy callstacks, currently disabled due to
crashing in audio callback callstack collection.

Tracy will now be built as part of Tracy.cake

Some more little performance changes. Audio now starts being
initialized right after SDL, before Ogre.

* Audio takes ~3 seconds to initialize on my machine, so I moved it to
a separate thread. There are now some new bugs where the app can crash
if pressing space before initialization is finished
* Reformatted, added some perf scopes

Hot-reloading is not yet working due to problems with multiple
instances of Tracy.

* Removed unused .mesh files and added Sphere to auto-export
* Renamed animations

Still a lot more to do, but it's a good checkpoint.

* Rigged monkey for test animation
* Update Ogre for my pull request to fix Release Samples build
* Note that this commit also requires
https://github.com/OGRECave/ogre-next/pull/181 , which fixes animation
in my current setup

* https://discourse.libsdl.org/t/sdl-moving-to-github/28700 announced
SDL's move to GitHub. While I'm sad they give more power to GitHub,
I'm happy I can include SDL as a submodule
* Change register -> def in order to match other functions

* Convert VocalGame to use Math.cake instead of hand-rolled vectors
* Update cakelisp for HotReloading const variable filtering
* Add "HandmadeMath" build label as a temporary workaround to
unnecessary rebuilding of non-math libs
* Rename vec accessors to be dimension agnostic
* Add more useful vector math functions

I had to educate myself via
https://github.com/HandmadeMath/Handmade-Math/issues/124 to figure out
how to properly write my matrix wrapping.

I implemented some of the most commonly useful functions I like for
matrix and vector interactions

* Math.cake now has a small number of useful 3D vector and matrix
  math types/constants/functions. I will add more as projects demand
  more exposed features
* Added HandmadeMath (public domain) for common game math
* AutoTest now builds its own configuration, because it was causing
  SDL to rebuild
* Added c-function-alias code, partly as a test to see if I had
  everything I needed to make a more fundamental feature, all in
  user-space. It is used to wrap Handmade functions in case I want to
  swap that math library out for another one (more likely than you
  might think)
* Upgraded cakelisp for registerEvaluateGenerator()

This speeds up building by not requiring compile-time hooks to add
link arguments. It's also cleaner.

* Updated add-c-search-directory due to string settings unification

* Build Ogre meshes and convert .png textures to dds, all in a
pre-build step. There's plenty of room for improvement, but it's a
good stop-gap for now
* Added more ignores

* Removed extra BuildDependencies.sh because it's no longer needed!
* Build_Debug.sh will now build Cakelisp itself, keeping it up-to-date
in case you update or are iterating on it
* Update Cakelisp for run-process-sequential-or and comptime function
fix (building build-ogre and build-sdl is how the bug emerged)
* Ogre and Ogre's dependencies now built via run-process functions
* Updated Ogre because I thought it might have issues (I caused the
issues). It's good to be more up-to-date anyways

* Removed extra BuildDependencies.sh because it's no longer needed!
* Build_Debug.sh will now build Cakelisp itself, keeping it up-to-date
in case you update or are iterating on it
* Update Cakelisp for run-process-sequential-or and comptime function
fix (building build-ogre and build-sdl is how the bug emerged)
* Ogre and Ogre's dependencies now built via run-process functions

* Need to specify platform on most projects now
* Fix unnecessary rebuilds by renaming hook copies in Loader

* Update Cakelisp for hot-reloading fixes, DynamicLoader.cake
* Specify 'Unix so DynamicLoader.cake properly generates Linux code
* Clean up after finishing loader execution
* Remove unnecessary search dirs

This required updating Cakelisp to keep the delimiter on the context

* I had to make changes to remove unnecessary global includes, which
caused command changes on files across projects
* Added Math.cake, which revealed a problem in macro
evaluation (delimiters need to be part of the context when evaluating
macros after the first evaluation)

Yes, the texture is extremely ugly. It's for testing :)

* Update readme with instructions for creating a textured mesh
* Darkened background color

* Use v2 meshes now that exporter creates them
* Add textures to resource locations
* Added model and texture for material preview

* Cleaned up namings in OgreInitialize.cake
* Added ogre-create-light
* Created OgreHlms.cpp, which is copied from Ogre's Sample
  PbsMaterialsGameState.cpp and modified
* Moved declare-extern-function so I could avoid making a header file
for test file OgreHlms.cpp
* Reorganized where build options are in a few files

* Update Cakelisp for HotReloading copy lib to Active version so it
the original can be modified (otherwise, it can cause a crash)
* Only reload on key release so it isn't reloaded for as long as the
user holds the key (many times per quick press, even)

Validate arguments