Handle clickable object encoutners

[xavieran]

• [x] Bag
• [x] Dead body
• [x] Building
• [x] Foragable bush
• [x] Camp fire
• [x] catapult
• [ ] combatants
• [x] chest
• [x] column
• [x] corn
• [x] dungeon pit
• [x] dead animal
• [x] door
• [x] tunnel
• [x] tombstone
• [x] ladder
• [x] dirt mound
• [x] stones
• [x] crystal tree
• [x] rift machine
• [x] scarecrow
• [x] siege engine
• [x] sign
• [x] slab
• [x] tree stump
• [x] dead enemy
• [x] well

[xavieran]

Doors and dungeon pits will be handled in #67
Combatants and dead enemies will be handled in #68 Catapult and rift machine #69