Player Piece Storage for Brass Lancashire and Birmingham

Storage boxes for player pieces in the board game Brass: Lancashire, and Brass: Birmingham. These are sized to make it feasible to store both games in one of the two game boxes.

There are separate sections for the building counters, canal/rail counters, and the wooden discs. That said, after printing these I found it useful to store some building counters in the canal/rail section as well.

I'm also using the market tile holder from [this design](https://www.thingiverse.com/thing:3044877)