Branch: i30_pythongeometry | Intent: Create module of native Python functions to
	replace numpy functions used in eppy geometry modules
Commit Intent: Modify test_py_numeric.py to test a new 'dot' function to be created
	subsequently
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*eppy/geometry/test_py_numeric.py
-Added new functionality, similiar to the first, to test the new cross product
 function...

*eppy/geometry/py_numeric.py
-Added an new function to calculate the dot product of two 3-dim. vectors...

**py.test: First test - PASS, Second test - PASS
**pep8: PASS
Merge branch 'i30_pythongeometry' of https://github.com/santoshphilip/eppy into i30_pythongeometry