Map parsing/loading/creation/editing

[ygina]

We need a streamlined way to play games on maps.

[Sanjay-Ganeshan]

I can support map creation/editing in the client, if you give me the format of map files.

[ygina]

@Sanjay-Ganeshan The format is exactly GameMap in battlecode-engine/src/map.rs

[Sanjay-Ganeshan]

Thanks