Introduce the ability to navigate using an anchor and aim.
Example use: Set spacecraft as anchor and planet as aim to always look down at a planet, while followin the spacecraft in its orbit.
* Move global objects out of OpenSpaceEngine
* General cleanup of main.cpp
* Add default_joystick asset to all scenes
* No longer suppress mouse interaction on slave nodes
* Window delegate uses function pointers rather than subclassing
* Fix for false overwriting of ImGUI configuration file
* Change default color and tilt angle of fisheye rendering
* Restructured performance manager
* Simplify screenshot handling
* Change to new logging format (closes#542)
* Adds a screenshots folder that uses the application startup time
* Creating focus nodes for VRT files if the info files contain location information
* Fix issue with removing virtual properties
* Add a method for returning the cartesian coordinates for a geolocation on a planet
* Interaction speed is not dependent on framerate
* Split up interaction code in files and perform smooth interpolation when changing focus
* Abstract interaction code in to functions.
* Interpolation time is dependent on angle to focus node.
* Use correct delta time when interpolating
* Fix bug regarding decomposition of camera rotation.
* Make orbital interaction mode behave as globe browsing and no longer use interactiondepth below ellipsoid.
* Do not always rotate with object. Depending on distance
* Remove interaction depth below ellipsoid. Now able to interact without renderable
* Remove specification of interactionDepthBelowEllipsoid and cameraMinHeight
* Remove GlobeBrowsingInteractionMode
* Rename OrbitalInteractionMode to OrbitalNavigator and no longer extend interactionmode.
* Move properties from interaction handler to orbital navigator
* Use smooth step for follow rotation interpolator
* Rename KeyframeInteractionMode to KeyframeNavigator
* Rename files
* Clean up.
* Separate mousestate from orbitalnavigator
* Clean up
* Split keybindingmanager from interactionhandler interactionhandler
* Rename interactionhandler to navigationhandler
* Rename files
* Clean up
* Take back usage of gotochunk and gotogeo
* Rename lua library navigation
* Move functionality from navigationhandler to keyframenavigator
* Update scripts for navigation
* Comment code
* Clean up
* Solve but that caused NaN values for camera position when being in center of globe and setting focus to the globe.
* Update jenkins file to remove build folder before building.
* Fix error in jenkins script
* Update jenkins file
* Update jenkins file
* Revert jenkins file
* I hope this makes Jenkins happy.
* Line endings God damnit
* Line endings
* Clean up
* Fix compilation issue
* Take back default scene.
* Fix indentation
* Move functions goToGeo and goToChunk to GlobeBrowsingModule.
* Include algorithm for std::find
* Remove auto and other clean up
