Gaia Sky 3.5.7

Features

add surface exploration mode for planets, where the camera moves relative to the position of the pointer when close to a planet or moon.
add floating-point completion rates to billboard datasets.
combine SSR with cubemap reflections to fill in parts that reflect to off-screen locations.
add Debian build files. Add Makefile. Add createDebian task to gradle build script.
updated Bulgarian translation

crash when enabling ‘Others’ component type at startup in VR.
sizing of datasets scroll pane with expand/collapse groups is incorrect in some instances.
add free space check before downloads, and clean up properly after a failed extraction operation. Fixes #744.
auto-scroll to target when cycling through UI elements with gamepad left stick. Selection and action with gamepad in dataset manager window.
zero-length keyframed path crashes the ‘normalize times’ action. Fixes #741.
add missing, untranslated strings to I18N files. Fixes #740.
start and dataset manager buttons do not scale horizontally with content.
ascending node parameter in rotation component does not apply correctly. Bump source version to 3.5.7, for new data is needed.
recursive tile lookup in sparse virtual textures module does not work correctly.
prevent SVT level overflows, and prompt for restart when tile cache size is modified in preferences.
remove custom amount of vertical scroll in scroll panes. Scrolling should now be much easier.