Tattoo has some different Sprite methods, and since Person descends
from Sprite, need to create descendents from it. And this has also
necessitated some refactoring of People class's _data array
This includes cmdNPCLabelGoto, cmdNPCLabelIfFlagGoto, cmdNPCLabelSet,
cmdSetNPCPathDest, cmdSetNPCPathPause, cmdSetNPCPathPauseTakingNotes,
cmdSetNPCPathPauseLookingHolmes and cmdSetNPCTalkFile