more sprite renamings
delete non-renamed sprites
fix wurmple evolutions
Fix slowpoke evolutions
fix pumpkaboo evolutions
collapse xy sprites and bw sprites in xy-dex folder (partial)
Expand Hidden Power -> Hidden Power {type}
Duplicate tag for pikachu.
Tweaks for Hidden Power
Expand Hidden Power in pokemon.
Remove redundant explanations in hidden power moves.
Remove duplicate moves.