[Ohrrpgce] SVN: teeemcee/13230 Shrink Slice further by using boolean instead of bool

[subversion at HamsterRepublic.com]

teeemcee
2023-04-22 20:34:41 -0700 (Sat, 22 Apr 2023)
236
Shrink Slice further by using boolean instead of bool

Also rearranged a couple members to put the booleans closer together, reducing
padding. And made EditorColor a ubyte.

sizeof(Slice) reduction:
32-bit: 216 -> 184
64-bit: 296 -> 264
---
U   wip/sliceedit.bas
U   wip/slices.bas
U   wip/slices.bi