stb_image.h v2.28 and stb_image_write.h v1.16 by Sean Barrett (http://nothings.org/stb),
vendored unmodified. Used by the custom texture pack loader (port/runtime/gx/texture_pack.cpp)
to decode replacement PNGs and to write dumped textures.

The upstream files are dual licensed; the full text of both options is reproduced at the
bottom of each header. Melee Unlocked uses them under the MIT option:

ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett

Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain. Anyone is free to copy,
modify, publish, use, compile, sell, or distribute this software, either in source code form or
as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
