TinySTL attempt 3.

[mcourteaux]

No warnings now in the MSVC build log on the Github CI bots.

[nathan-stouffer-onx]

I am getting compile errors for wasm in bgfx and I believe this PR is the source. I am getting some undefined errors for identifiers

==== Building bx (debug) ====
==== Building bgfx (debug) ====
==== Building bimg (debug) ====
==== Building bimg_decode (debug) ====
glcontext_html5.cpp
../../../src/glcontext_html5.cpp:34:45: error: use of undeclared identifier 'strlen'; did you mean 'bx::strLen'?
   34 |                         m_canvas = (char*)bx::alloc(g_allocator, strlen(_canvas) + 1);
      |                                                                  ^~~~~~
      |                                                                  bx::strLen
../../../../bx/include/bx/string.h:265:10: note: 'bx::strLen' declared here
  265 |         int32_t strLen(const char* _str, int32_t _max = INT32_MAX);
      |                 ^
../../../src/glcontext_html5.cpp:35:4: error: use of undeclared identifier 'strcpy'
   35 |                         strcpy(m_canvas, _canvas);
      |                         ^
2 errors generated.
make[2]: *** [../../wasm/obj/Debug/bgfx/src/glcontext_html5.o] Error 1
make[1]: *** [bgfx] Error 2
make: *** [wasm-debug] Error 2

[mcourteaux]

This compilation error simply reveals that glcontext_html5.cpp was not properly using bx functions, but instead libc-functions. You can make a PR in bgfx repo to fix this.

strlen => bx::strLen
strcpy => bx::strCopy