Rewrite items and other classes to classes containing the information and behavior itself.

[vonRamen]

Makes the easier to implement with unique behavior.

This would maybe render the Action class redundant, which is nice.

[vonRamen]

ExtensionLoader is written. It is a generic class for loading classes directly from the packages.

Can both load one and multiple classes.

[vonRamen]

GameObjects and GameItems have been implemented.

Tile should be refactored, and be implemented.

Weapon in a distant future.