Add libGLES_CM to the Code::Blocks project.

Change-Id: Id69512842d9a863b110f8c8bf5244c117d96fae7
Reviewed-on: https://swiftshader-review.googlesource.com/1464
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>