Items implemented

- items are now implemented - however…
- items implementations showed there were many gaps in how situational
data is handled (rooms, items…) and now a database is being implemented
to remedy this
- SQLite3 database is soon to be implemented to handle data
database update, pathfinding update

- item assets now based on a sprite atlas
- database extended to handle items
- A* pathfinding implemented to replace object-based collision
detection, continues to need tuning