Fault network topology calculator

[lachlangrose]

Input: Faults
Expected Augmentation: Fault network topology

Originally posted by @markjessell in #28 (comment)

[lachlangrose]

@markjessell this has been added with a basic topology calculation using geopandas buffers. It updates the topology table in the geological model, do you want to be able to export this topology? As a graph or table?