* Add initializeGL and deinitializeGL methods to OpenSpaceModule Call releaseAll from ProgramObjectManager in deinitializeGL to guard against errors when deinitializing assets

* Change removeProgramObject function in RenderEngine to take a non-owning pointer instead of a reference to a unique pointer to make it compatible with the ProgramObjectManager
Update Ghoul repository

* Using ProgramObjectManager in more modules to reduce the number of programs compiled at startup