Support new map organization

Update parsing of new object_event macro

'Map Object' -> 'Event Object'

Fix event_object_movement.c filepath

Edit Map Connections

Properly support painting tiles from secondary tileset

Fix collision and elevation selections

Add multi-block and smart-path tile painting

Add ability to export map image

Add map grid toggling

Display hovered map tile and block info

Populate items, flags, and vars in dropdown menus