Some New ICs are added with new implementation of Logic Gates and refactored IC classes.

New ICs are:
7412, 7413, 7415, 7416, 7417, 7418, 7419, 7420, 7421, 7422, 7424, 7425, 7426, 7427, 7428, 7430, 7432, 7437, 7440