Separate the implementation of the Aviation Formula into a another class

[matismasters]

As a first step to using different formulas, moving the code withing the move method to a separated class that receives the basic params and returns the lat long pair, will create the initial architecture to having different ways of calculating the distance.

Afterwards we should be able to use the class Point just for getting the parameters and selecting which one of the formulas to use, either by user selection, or based on the parameters and using the most accurate.