Setup Documentation, starting 2023/06

Installed and set up RealVNC on RockyLinux8/stefan, 2023/06

1. Installation - RealVNC install notes
2. Testing - Testing VNC installations
3. User Setup - Setting up the VNC users
4. User Accounts - Notes about setting up the indivudual VNC user accounts and desktops
5. copy_of_config_files - Copies of the core RealVNC config files