[Ohrrpgce] SVN: teeemcee/9759 mapedit: tile mode and door mode mouse support improvements

[subversion at HamsterRepublic.com]

teeemcee
2017-11-25 14:46:44 -0800 (Sat, 25 Nov 2017)
314
mapedit: tile mode and door mode mouse support improvements

Double right-click to grab a tile (or just right click the selected tile),
right click to link a door, and left or right mouse button + mouse wheel to
change map layer.

Not sure whether the mouse wheel by itself should select the tile or the map
layer.
---
U   wip/mapsubs.bas
U   wip/ohrhelp/mapedit_door_placement.txt
U   wip/ohrhelp/mapedit_npc_placement.txt
U   wip/ohrhelp/mapedit_tilemap.txt