Add graphs for resource cost and location

I'm thinking resource cost can be an area graph like everything else, with maybe some kind of a composite "entire stock market" graph showing values! That would be so neat!

Also, I'm thinking of making a donut graph to show how much time you've spent in each location, since area chart doesn't really seem like a good way to represent that data.
- [x] **_Add gameData tracking for resources**_: cost over time
- [x] **_Create Resource Cost area graph**_
- [ ] **_Create Mega Stock Market area graph**_
- [ ] **_Add gameData tracking for location**_: As in, how long a player has spent as X location out of the total time he's alive. This will be used to generate a graph when the user clicks on a new "History" button in the inventory section. This can be done in the "updateGameData" function.
- [ ] **_Create Location donut graph**_