Implement EPP for extracting Terrain profiles

Implement new EPP which would expose:

Geographic coordinates of Tx and Rx
Distance, Transmission loss
Terrain height profiles for Victim system link (VSL), Interfering system links (ISLs) and Interfering links (ILs) at the last event.

EPP should group values by type of link and also enable exporting values to the external files.

This issue is connected to #47 (closed)

Edited Jul 08, 2022 by Zeljko Tabakovic

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