[Feature] New RAW32 scheduler

[Joel Bodenmann]

We have released a new implementation of the RAW32 port which is used to run µGFX on a barebone system without any underlying operating system. The new scheduler code is an improvement over the old one and contains many new settings which allow optimizing for specific compilers and CPUs if necessary.

The new settings have been documented in the wiki:

• Config File Options: http://wiki.ugfx.org/index.php?title=Configuration#GOS
  
• Documentation: http://wiki.ugfx.org/index.php?title=GOS#Configuration

Note that the following configuration option(s) changed their name:

• Config file option GOS_RAW_HEAP_SIZE becomes GFX_OS_HEAP_SIZE

Also see: viewtopic.php?f=9&t=262

~ Tectu