Map import/export functionality should be implemented

The format of the map file is as follows:

{
  "name": "testmap", // name of the map (parameter)
  "version": "1.0.0", // version of the map format
  "width": 4, // width of the map
  "height": 3, // height of the map
  "radius": 40.0, // radius of the hexagons
  "orientation": "POINTY_TOP", // enumerated: POINTY_TOP or FLAT_TOP
  "layout" : "RECTANGULAR", // enumerated: RECTANGULAR, HEXAGONAL, TRIANGULAR, TRAPEZOID, EMPTY
  "tilesetUrl": "http://example.com", // the url of the tileset. the tileset defines the tileIds as well
  "cells" : [
    [0, 0, 1, 1.0, 1] // x, z, isPassable, movementCost, tileId
  ]
}

Since map import/exports are not part of the core functionality it goes to the hexameter-util module.

Hexworks / mixite

Map import/export functionality should be implemented #9