Added sector setup functionality

[TaylorBoyd]

Main changes here was adding in the sector data to the board on setup. Made some changes to "showGame" and "setup_game" functions to account for the new data format in sectors.json

Also, reversed the order of the influence and population trackers to work nicer when figuring out income and upkeep.

Steps needed to finish setup:

• each tile needs to have a spot for an influence disc to be placed or an owner designation. I am thinking this can just contain the player_id or player_color so it's obvious who owns it. Color might be nice for drawing purposes then you won't have to check the player color each time.
• On completion of startup each home system needs to have the population cubes and influence disc added to it. Again I think the "empty" available spaces in each should just be replaced with either the player_id or player_color.

[TaylorBoyd]

Realized there is an easy way to fill in the home system tiles. Going to add that functionality to this as well.