Added new subcommands to 'rf_manager_config.py' to display and configure network protocol settings

[mraineri]

Some samples:

$ rf_manager_config.py -u root -p password -r https://192.168.1.50 getprotocol
Manager Network Protocol Info

  Protocol         | Enabled  | Port   | Other Settings
  HTTP             | True     | 80     | 
  HTTPS            | True     | 443    | 
  SSH              | True     | 22     | 
  Telnet           | False    | 23     | 
  KVMIP            | True     | 5900   | 
  NTP              | False    |        | NTP Servers: time-b-b.nist.gov
  RFB              | False    | 5901   | 
  VirtualMedia     | True     |        | 
  IPMI             | False    |        | 
  SNMP             | True     | 161    | 
  DHCP             | True     |        | 
  DHCPv6           | True     |        |

$ rf_manager_config.py -u root -p password -r https://192.168.1.50 setprotocol -prot IPMI -dis
Configuring IPMI...

[mraineri]

Merging out of cycle.