[Ohrrpgce] SVN: teeemcee/10068 Replace frame_import_bmp_as_8bit with image_import_as_frame_8bit

[subversion at HamsterRepublic.com]

teeemcee
2018-03-03 23:54:21 -0800 (Sat, 03 Mar 2018)
227
Replace frame_import_bmp_as_8bit with image_import_as_frame_8bit

You can now use pngs and jpgs as asset sprite slices in slice collections

Also, this fixes previews of PNGs not appearing in the browser in 8-bit/remapped
mode.
---
U   wip/allmodex.bas
U   wip/allmodex.bi
U   wip/browse.bas
U   wip/custom.bas
U   wip/mapsubs.bas
U   wip/slices.bas