Creation of the two first classes of gears, spur and helical.
Creation of first attributes and methods of the spur gear class. Need to finish the 'ClosestModule' method.
Method of closest standard module value determination finished.
Add of the diametral pitch calculation.
Creation of a specific function that show the main informations about the gear, including the fact that numbers of teeth on pinion and wheel could be not coprimes.
Add of verbose mode for simple calculation properties functions and of a function that modify the center distance to respect standard module values.
Modifications in the way the code is written, in order to be as close as possible from the recommandations of the PEP
Some accessory modification of comments and docstrings
Merge https://github.com/avaudrey/pyGearCalc