New tails, heads and windowed mode!

Here is the new stuff:

• Now you can add a tail to your character and see it move left and right!
• An equine and a bear head, as well as a whole preset for each;
  
• New settings, so now you can change the graphical quality and play on either windowed or fullscreen mode;
• Tooltips for both main menu and the level editing screen! I think they're neat and I do love when games use them for additional context and information

If you find any bugs or want to suggest new tail or head types, feel free to comment them here or on the forum section of the itch.io page ^^