Ruslan

Add multi-sampling for DirectX

5

### Please add multi-sampling for DirectX (MSAA). For **OpenGL** it is possible to enable anti-aliasing: ``` SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 6); ``` But for **DirectX** this feature is not implemented: ```...

Hi. I wanted the texture to display antialiased shapes in the example "sample-framebuffer.c".  But when I set `sapp_desc.sample_count ` > 1 I get an error.  Please tell me...