By using the direct method of setting the blend and depth/stencil states we touch less objects and remove the possibility of garbage generation.
Eliminated some garbage creation when updating dynamic vertex buffers.
Merge branch 'd3dgarbage2' into d3dgarbage
Eliminated garbage creation for dynamic index buffers.
Merge pull request #1871 from SickheadGames/d3dgarbage

DirectX Garbage Reduction
Merge branch 'develop' of git://github.com/mono/MonoGame into monogame-sdl2