The module should also support bit masking (left or right justified) with AND / OR / XOR / NotAND / NotOR / NotXOR operations.

ieg following the same structure:

binary.AND(a,b)
binary.OR(a,b)
binary.XOR(a,b)
binary.NOTAND(a,b)
binary.NOTOR(a,b)
binary.NOTXOR(a,b)

The number of larger length of bits of a or b is used and the other padded with '0' or '1'

Default could be: right justified and '0' padding on the left

option1: left justified

option2: padding with '1'