Manually fixing merge problems on other parts of toolbox developed (accidentally) in the propagation feature branch

Moving propagation model files into Pigeon folder, as they entirely rely on Pigeon output and therefor should be visibly placed alongside

- added classes for combined atmospheric / urban simulation

Removing row-to-col verctor transformation in maekawa diffraction, and fixing a bug in tf field checks

- revised method to create binaural simulation sphere (experimental, please test and use with caution)
- added method to create raven loudspeaker ini file (to be revised)

aurelio control

See merge request !5