Initial Tests -- For all classes

This issue will track the initial tests for the various classes.
- [x] Actor class
- [x] Mob class
- [x] Player class
- [x] Item class
- [x] Weapon class
- [x] Armor Class
- [ ] Map class
- [x] Loot table class
- [x] Shop class

These tests will be basic ones like making sure that the damage handler works for healing and also damaging, that they can have methods set and read etc.