Automate various sys admin stuff.

Changes for 0.5.0 - 2024-01-19

• add snmp_install action
• add sneck_install install
• action pkgs, add in results reporting at the end of the action
• now set both lower and upper case proxy values
• LWP::Simple replaced with LWP::UserAgent everywhere
• action xeno_build, fetch is a bit more verbose as to the results