Buran OK-GLI cockpit

I'm adding the final touches to the Buran OK-GLI virtual cockpit! This project took me a long time to finish, as source photos were dificult to sort out. The aerotester (OK-GLI) and the orbital vehicles have slightly diferent instrumentation to complicate things. Also, only the aerotester was actually finished, meaning that most of the orbital version's panels displayed are mock-ups or incomplete versions.