Conversation added + more polish

I finished the location Old Building (at March Street), it has a little
story in it that’s not finished yet.
Inventory view is now redone where you can see how many bullets or uses
you have left on weapons, also any other items than that disappear if
you use them (their count equals to zero).

I still have that annoying bug on Create character screen - if you have
ValueError, the screen appears again to begin new character creation
but it is messed up - you need to restart the game for it to work.