Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

z:
cd test
rem runtests e32test.auto.bat
rem format c:
rem runtests f32test.auto.bat -d c