Added the function is_perfect_range(int num) which calculates perfects numbers from 2 - num.

Added:
+ void is_perfect_range(int num)

is_perfect_range(int num):
	Takes a number (int num) and checks all numbers between 2 - num to see if the number is perfect.
	If a number is found to be perfect, for now, the function prints out that the number is perfect.