Character base

Added some of the character code, however it's not yet animated.
Animation right

Added animation, but it only works for the character going right
currently. We need to find a way to reflect the images along the y axis
for when the character is moving left.
Left Animation

Added animation for the player moving left; also sped up the player
animation to make it look a bit more realistic. It still looks a bit odd
when the player is moving against a wall, but otherwise I think it's
fine.
Animation speed change

Somehow didn't include the change in animation speed in the last commit.
Here it is.
Merge pull request #3 from assumption/character

Merging the branch with character model and animation into master branch.