Tilemap json to construc2

Here’s the full list of it do this plugin.

• Load orthogonal, isometric & hexagonal maps 
• Decompress data zlib and glib with pako.js
• Decode base64 data
• Load properties from tile, layer, tileset & map data.

  Fixed a bug where the orthogonal button did not perform any action.

  Fixed a bug that caused the game to not load when reading map properties.