GLES2Dbg: add more state tracking and snapshot of state per GL call

Use TreeView and Reflection to display the states per GL call.
Need to implement more state cloning and tacking.
Prepare to group calls by frame, and clone the context for each frame.

Change-Id: Ib1e5c175da779610204003e352cc1fcf66af969b
Signed-off-by: David Li <davidxli@google.com>
10 files changed