Added validity checks for RenderbufferStorageMultisample
and BlitFramebuffer, mostly missing checks for using
integer types or depth/stencil framebuffers with
multisampling, which is not allowed.

Fixes all failures in:
dEQP-GLES3.functional.negative_api.buffer*

Change-Id: Ie1db21a3b9f1ca71ed660a2758d43f24846acdf1
Reviewed-on: https://swiftshader-review.googlesource.com/14048Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>