utils: Move write_usage_and_exit to wutils

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
utils: Copy gears.c from mesa-demos as wflgears.c

This is src/demos/gears.c from b695b1fd0be28206bbf7cea3185250cd2127ea84
of git://anongit.freedesktop.org/git/mesa/demos.

This file is marked as 'public domain'.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Cc: Brian Paul <brianp@vmware.com>
utils: Add elapsed_ms function to wutils

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
utils: Add additional GL enums/types to wutils

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
wflgears wip

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>