[6.6.6] Show Unraid UI ports in Docker allocations or block their use

Show Unraid port assignments in the Docker allocations to prevent Docker ports being assigned to Unraid ports.  Server type Dockers tend to want to use ports 80, 443, 8080, and 8443 that are potentially being used by Unraid.  This causes Dockers to fail because of improper port assignments.

An alternative approach would be to not allow any ports to be assigned to those potentially used by Unraid.  i.e. reserve those ports (80, 443, 8080, and 8443) to be used for Unraid exclusively.

Those users not astute at networking can cause themselves problems and extra support for Docker authors when they don't map ports correctly.