Concept for player resources

[Abb4]

Looting and hiding are important for our game. But it would be nice to scope out what else should be implemented for 1.0 and in the future (e.g. health, crafting materials and so on...).

I have opened a discussion here.

The result of this issue should be a committed design document. I would suggest excalidraw file format, since these diagrams can be serialized and committed to git, including the images embedded within.

This should probably be done after #11

[Abb4]

This may be already partially discussed in #46