Headquarters improvement draft

[SThor]

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[github-actions]

Branch issue-4-Headquarters_improvement_draft created!

[SThor]

So this needs a lot of refining.

I was thinking of adding some kind of inventory, or at least a purse for the coin count.

I should also list tiers of headquarters, starting from a small cave up to an empire capital.
Then I also need a list of available amenities, which could be tied to the current tier of headquarters.
Each headquarter would have some slots for amenities, and you would be able to invest in amenities and have someone work in them. So the slots should probably be more something like to the capacity of workers/families in your headquarters, which you could then assign to amenities. Amenities could maybe be things like complexes, requirering multiple workers in order to be functionnal.

So I also guess I need something without any workers for the very first tier during which you are by yourself. Ooooor maybe the amenities can unlock once you pass the first tier. I still need something to do in the first tier. I was thinking of something allowing us to cook & eat; something to rest (so maybe there could be a cooldown between contracts ? not super fun ...); something to store more money; huh I need more ideas ...