Add maths/test_prime_check.py (TheAlgorithms#1125)

* Add maths/test_prime_check.py

* Add comments on why this file is required

Author: cclauss

maths/test_prime_check.py

@@ -0,0 +1,8 @@
+"""
+Minimalist file that allows pytest to find and run the Test unittest.  For details, see:
+http://doc.pytest.org/en/latest/goodpractices.html#conventions-for-python-test-discovery
+"""
+
+from .prime_check import Test
+
+Test()