pfittipaldi

This code adds satellite links to QuISP. More information can be found in `quisp/modules/Satellite/README.md`. The Free-Space links work by parsing CSV files that contain distance of the satellite and atmospheric...

This PR ties the previous ones together: it includes some hotfixes that were overlooked in the previous ones, but mostly it is about the simulation tests for satellite configurations and...

This PR adds unit tests to test the Free space channels added in the previous PR. - - - This change is [](https://reviewable.io/reviews/sfc-aqua/quisp/557)

This PR adds support for free space channels that will be useful for simulation of satellite networks. - - - This change is [](https://reviewable.io/reviews/sfc-aqua/quisp/556)

This PR adds a module simulating the pointing system of a satellite, which is responsible of checking whether the recipient of a message is in line-of-sight before the message itself...