Motion 1.4.3 update

Another visual update that makes some improvements and corrections and a new hit effect involving birds.

• New hit effect
  • Making a lot of noise near specific trees will scare off birds within the tree, not really important but I like the way it looks
• Sprite changes
  • The ground is a new dirt sprite that no longer has a viewable edge, I believe it fits better with the forest theme
  • The colouration of the back trees have been slightly altered to match the colour theme and also make shadow more visible
• Parallax changes
  • Added some parallax to the 2 layers of trees in the background