Add gateway, dns, and google

[KFBI1706]

Status

READY

Migrations

NO

Description

I've added modules so you can see gateway ping status, and dns server ping status. The function of the gateway and dns is to easily see where in the process there's a problem. For.example: GW ok and CON ok, DNS down -> dns isn't working GW ok and CON down, DNS down -> there's no WAN link

Related PRs

no related PRs...

Todos

• [x] Tests
• [ ] Documentation

Steps to Test or Reproduce

Outline the steps to test or reproduce the PR here.

git pull 
#add #{GW}, #{CON} and/or #{DNS} to .tmux.conf

Impacted Areas in Application

This won't affect any area of the application, as I've kept the old config in there. It's simply an option for people like me, which find that extra information very useful.