Get it finally working (somehow)

- Add working example
- Add Namespace defs for Iron Ctr and C3D
- Add Exit func / Vertex / Index counter to Iron
- Add format bytes function to utils
- Make stb_image optional
- Compute texture uv's
- Clear Everything in Drawlist::Clear
- Use Amy::mat4 as matrix lib
- Fix the most stupid rendering bug (i -> m_idx)

source/texture.cpp

@@ -66,6 +66,8 @@ void Texture::Load(kvr<uc> pixels, int w, int h, int bpp, Image::Format fmt) {
   if (!Utils::IsSingleBitNum(pSize.y)) {
     pSize.y = Utils::NextPow2(pSize.y);
   }
+  pUv = Amy::fvec4(0, 1.f, (float)w / (float)pSize.x,
+                   1.f - ((float)h / (float)pSize.y));
   auto filter = GPU_NEAREST;
   auto Format = image2TexFmt(fmt);
   pTex = new C3D_Tex;