Small changes to clean up animation descriptions
Ch20 add info on JSON-based animation files, naming conventions (to help my sanity)
Ch22 text clean on the animation files, field descriptions, added some info on independent sprites
ch25 Fixed typos, improved field descriptions
Ch28 added more fields and condition types
Small changes to clean up animation descriptions Ch20 add info on JSON-based animation files, naming conventions (to help my sanity) Ch22 text clean on the animation files, field descriptions, added some info on independent sprites ch25 Fixed typos, improved field descriptions Ch28 added more fields and condition types