Add non-square mat support to the shader language interface.

TRAC #23081

Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2397 736b8ea6-26fd-11df-bfd4-992fa37f6226
4 files changed