add sceneries and planes to the crrcsim package

Package: crrcsim
Version: 0.9.13

This 'bug report' is a very kind request for adding data files to crrcsim. The identical 'bug report' has been sent to Debian BTS, as was recommended.

[A] The first request is to add the data from

http://joel.lienard.free.fr/crrcsim/index-en.html

to the crrcsim package in Debian. These sceneries are really spectacular and completely transform the experience of crrcsim.

Mr. Liénard was so kind to attribute the "Creative Commons Attribution-ShareAlike 4.0 International License" to his work today to allow the inclusion into Linux distributions. The (CC-BY-SA) v4.0 is part of the DFSGLicenses.

[B] This report also highly suggests that the scenery

LesBusards

of Mr. Liénard's work becomes the default scenery for crrcsim.

After comparing the original default scenery and the LesBusards scenery, I hope you will agree that LesBusards is as general purpose as the original default scenery but far more beautiful and realistic.

[C]) If the license for the additional planes

https://sourceforge.net/projects/crrcsim/files/crrcsim-addon-models/CRRCsim-addon-models-0.2.0/

of the original crccsim project is the same as for crccsim itself, then it would be good to include them into the Debian crrcsim package also.