Palette

Updated the palette tool to work with new schemes. PaletteApplyEnv is now abstract and has group scheme and prop scheme specific subclasses.

paletteApply.cm

PaletteApplyEnv '''cm Old: public constructor(Palette pal, schemeFilterType filter) New: public constructor(Palette pal, schemeFilterType filter, Space space=null) '''

paletteDialog.cm

Old: extend public PaletteApplyEnv applyEnv(schemeFilterType filter)
New: extend public PaletteApplyEnv applyEnv(schemeFilterType filter, Palette pal=null)