32-bit integer vertex attribute

Added 32-bit signed and unsigned vertex attribute

Change-Id: Ibbf9c035294584db71713ae7aeca36b32a8564c0
Reviewed-on: https://swiftshader-review.googlesource.com/4974
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/Renderer/Stream.hpp

diff --git a/src/Renderer/Stream.hpp b/src/Renderer/Stream.hpp
index 5bf9862..a3555f4 100644
--- a/src/Renderer/Stream.hpp
+++ b/src/Renderer/Stream.hpp
@@ -29,6 +29,8 @@
 		STREAMTYPE_SBYTE,
 		STREAMTYPE_SHORT,
 		STREAMTYPE_USHORT,
+		STREAMTYPE_INT,
+		STREAMTYPE_UINT,
 		STREAMTYPE_FIXED,     // Normalization ignored (16.16 format)
 		STREAMTYPE_HALF,      // Normalization ignored