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

# Note:  this file must not be named pydoc.pyw, lest it just end up
# importing itself (Python began allowing import of .pyw files
# between 2.2a1 and 2.2a2).
import pydoc

if __name__ == '__main__':
   pydoc.gui()