Changed return value of hte pixel shader for shadowmaps from float4 to float and target from SV_Target (renderTarget which was not used(not binded)) to SV_Depth.
Added code for instancing meshes. (not used atm, only thing left to do is fix is matrices.

Signed-off-by: Markus Tillman <reetopps6@hotmail.com>
Merge branch 'master' of https://github.com/Malow/NDYGFX