Major Update to Elanor Demo

1. The game screen is now resizable and zoomable and the demo can be played in fullscreen mode.
2. World map generation is working. Maps beyond the player's home can be visited.
3. A few simple quests can now be completed.
4. Improvements to the NPC dialog allowing for continuing conversations.
5. Plants and mushrooms are now generating on each map and in many cases are specific to each map.