[Ohrrpgce] SVN: teeemcee/8701 Extend Palette16 to 256 colors; add palette16_new_from_indices()

[subversion at HamsterRepublic.com]

teeemcee
2017-05-01 09:28:59 -0700 (Mon, 01 May 2017)
234
Extend Palette16 to 256 colors; add palette16_new_from_indices()

The extra colors can be used when passing to frame_draw (since no bounds
checking was done anyway).
For now I'll delay renaming it; I'm not sure what to call it anyway!
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U   wip/allmodex.bas
U   wip/allmodex.bi
U   wip/allmodex.h