[ENH] Return values of drift function to calculate throw, displacement and heaven of fault

[AlexanderJuestel]

Is your feature request related to a problem? Please describe.
Relates to #198

It should be possible to return the values of the drift function along the fault line to calculate the throw, heaven and displacement of the fault.

Describe the solution you'd like
Some sort of attribute that returns the values of the drift function so that they can be further used for calculating the fault properties

Describe alternatives you've considered
Calculating the throw using two wells on both sides of the faults.