Update 0.3

List of changes:

• Added new main menu.
• Now you can place furnitures next to walls.
• Added new post-processing effects, you can toggle it in settings.
• Added new textures to paint:
  • New tiles
  • New planks
• Now plot is surrounded by fence.
• Added street and trees near plot.
• Added new tree: Birch tree.
• Now you can move furniture with other furnitures attached to it.
• Smaller fixes and changes.