add docs, move some data fetching to more appropriate class
remove old XP memecrypto support handling, was previously removed due to
net standard/core split
refactor memecrypto to handle multiple save sizes (USUM won't be the
same size save file); placeholder -1 for USUM size
Closes#1451 , was caused by empty party writebacks (was reading from
wrong offset
dex caught/owned offset was listed as 0x28AE in the thread, is at 0x2AAE
instead (-0x20 from seen)
should have correct offsets and handling now :)
