Finished rest of normal hit animations

This pull request completes the rest of the normal hit animations. Here are the changes:

* Moved Sage animations to proper sage unit. Before, the sage animations were using the mage field sprite.
* Created the Mage animations, and correctly linked them to the mage field sprite.
* Added both the enemy and player warrior animations.
* Added the Enemy/Player Hero animations. Not to be confused with the main player, `hero.js`. This hero is the class called hero, labeled as `advancedHero.js`