header (C) fixes
Automated rebranding to Oracle copyright/license strings via filemuncher
alternative license for VBoxGuestLib is CDDL
VBoxGuest.h,VBoxGuestLib: Moved the VbglR3 API out of VBoxGuest.h and did some cleanup.
The Big Sun Rebranding Header Change
Back to private naming convention.
Guest R3 naming fixes. This subsequently fixes the guest r3 video drv's missing symbol issue. The OS2 change I hope doesn't break anything. It seems to be internal.
Made VbglR3GR* private, split up the code a bit to make it more suitable for static linking.