Create series_7400_tests.py
Create series_7400_tests.py

Added tests for the 50 ICs of 7400 series .
daj0ker/BinPy,rajathkumarmp/BinPy,BinPy/BinPy,yashu-seth/BinPy,rajathkumarmp/BinPy,daj0ker/BinPy,yashu-seth/BinPy,BinPy/BinPy