[Ohrrpgce] SVN: teeemcee/8294 spriteedit: function argument list cleanup, moving things into SpriteEdi

[subversion at HamsterRepublic.com]

teeemcee
2016-12-31 17:13:35 -0800 (Sat, 31 Dec 2016)
278
spriteedit: function argument list cleanup, moving things into SpriteEditState

The sprite editor now computes the zoom itself instead of being given as an
argument, which changes the zoom for a few sprite types.

Moved most initialisation from spriteset_editor to sprite_editor
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U   wip/custom.bas
U   wip/custom.bi
U   wip/custom_udts.bi
U   wip/drawing.bas