Fix a 64bit processor bug.
Add support for processors where the floating point and integer endianness don't match.
Add support for processors with a non-standard floating point format.
Update gdisp_streaming demo with extra comments to reflect the above changes.
New low level driver interface: Only Win32 ported currently
Significant reduction in GDISP stack usage
Improved performance particularly for native streaming drivers
New circle, ellipse, arc routines (draw and fill) that are significantly more efficient and don't overdraw
New arc draw algorithm that measures angles correctly.
New arc fill algorithm for that actually works without overdrawing or gaps.
Much more to come...
