"#SUDO checked" for each function

- Add code to set SUDO to sudo binary and check that all needed commands are listed.
- SUDO can also be an "ask me first" function.

Needed sudo commands:
    - ipchains binary
    - iptables binary

Assumed:
    - MASONDIR exists and is owned by firewalluser
    - the entire MASONDIR tree (with the exception of:
/var/lib/mason
/var/lib/mason/baserules.sample
/var/lib/mason/masonlib
/var/lib/mason/moreservices
/var/lib/mason/nmap-services
/var/lib/mason/regression-test
    is owned by firewalluser
    - /etc/masonrc is owned by firewalluser