Metatiles can be given a name. The name becomes a constant in
includes/contstants/metatile_labels.h.
The plan is to be able to reference metatiles in code using a macro
like `METATILE(Building, TV_ON, Primary)`, which will evaluate to the
value 0x003, or `METATILE(BrendansMaysHouse, MOVING_BOX_OPEN, Secondary)`,
which will evaluate to the value 0x270.
* save window state on app close
* new map popup window
* window title, groupItem fix
* fix new map heal location generation
* fix newmappopup form size
* empty map name check, increase max dimensions
* tool tips
* delete new window
* fix mainwindow.ui new map action
* use new config for window state
* clean window restore config settings
* extend "Add New Map" to different MapSortOrders
* fix crash when creating new map from unloaded layout
* fix new map from layout extra files
