* Cleanup Property code
* Remove NOLINT statements
* Return Property class types as string_view
* Remove getStringValue function
* Simplify string value retrieval
* Ensure that image paths in the ImageSequenceTileProvider are sorted (closes#2205)
* Some cleanup of OpenSpaceEngine
* Cleanup documentation
* Some more cleanup of engine classes
* Some more cleanup
* Update SGCT repository
* Use new Jenkins node identifiers as the old method broke with update
* Define WIN32_LEAN_AND_MEAN and VC_EXTRALEAN globally
* Use forked version of TUIO, some more work on precompiled headers
* Improvements for the Kameleon module
* Add the loading of a hash for wwt image files and automatically force a redownload of the files if the hash has changed
* Move the wwtdataimages location into the sync folder
* Some general code cleanup
Fix interaction problems when hovering/clicking with the mouse in a non-GUI window, when having a setup with more than one window (e.g. the single_gui.json setup)
Previously, clicking with the mouse in the rendering window without the GUI also triggered mouse clicks in all the other windows, including the GUI windows. This was disturbing for interaction in the single_gui setup
Now, the GUI modules check to see if the clicked window is actually an interaction window
* Remove planet geometry and simplespheregeometry
* Only use a single TLE loading implementation
* Add caching to the satellite loader; Add Lua function to load kepler file
* Fix RenderablePlanetProjection specification
* Add OMM loading funtion; Remove mean motion from Kepler parameters
* Replace TLETranslation class with GPTranslation and support OMM files
* Support loading SMDB files in kepler functions
* Merge RenderableSatellites and RenderableSmallBody with RenderableOrbitalKepler
* Update submodules
* Adapt existing satellites to new OMM file type
* Remove TLE helper
* Remove SSSB shared file and adapt sssb assets
Note that the anchor should be used as a reference frame per default. Also, it should always be used, if possible. We have quite some problems when using other reference frames
PR: #2175
