Remove demultiplexer complication
Removes demux code from generator
Update better parser to not ignore 0-level potions table
Update everything for changed data format
Hides dice inside dataWrapper
Reinstate ability to roll for single item

Also switch a bunch of vars to consts.
Add comment, rename function, mess with spacing
Update readme
Fill in missing table information with GM fiat options
Changes initial item counts to 0 instead of arbitrary numbers