Preprocessorcode for bitset has been moved to tommath.h
Function to test if the number has 32 or more bits
Function to test if big nmber is divisible by another big number
Function to test if big nmber is divisible by a mp_digit
Moved bitset from bn_mp_primorial.c here and added the prototypes for the newly added functions
Addition of the newly added files
Addition of the newly added functions and their dependencies