TrippLite TLNET card

Hi, please add support for TrippLite TLNET card. Please find all information below:

https://p.libren.ms/view/d01027b4
https://p.libren.ms/view/e3f60ab3
https://p.libren.ms/view/6e810b28

Basically, web interface allow to monitor lot of sensors and states, but generelly I would like to have battery status (on battery or on line), battery life or remaining, voltage of the battery, amps of load.

Thanks.

(Imported from https://github.com/librenms/librenms/issues/10881, Original request by: @4uba)