Added translation table

Translation table which contains columns for both pre-0x5c and post-0x5c shift characters.
Column definitions are, in order from left to right:
hex code in-rom, 
pre-0x5c char, 
A(scii)/S(ymbol)/H(iragana)/K(atakana), 
post-0x5c char, 
A(scii)/S(ymbol)/H(iragana)/K(atakana),
notes.