Merge globebrowsing, resolve conflicts

Reduce SizeReference font size - TextureAtlas threw InvalidRegionException
Use Mars and Earth Barycenter and not center of mass
Use name Mars instead of LodMars, same for Earth
Move init of font manager to be done prior to scene init
Debug log what modules are added
Debug log when creating SceneGraphNode from dictionary

openspace.cfg

@@ -13,7 +13,7 @@ return {
     -- Scene = "${SCENE}/rosetta.scene",
     -- Scene = "${SCENE}/dawn.scene",
     -- Scene = "${SCENE}/newhorizons.scene",
-     Scene = "${SCENE}/osirisrex.scene",
+    Scene = "${SCENE}/osirisrex.scene",
 
     Paths = {
         SGCT = "${BASE_PATH}/config/sgct",