Create ok-cablereport-v3.php

Racktables reports plugin for listin of all linked cables in Racktables.
Update ok-cablereport-v3.php
Update ok-cablereport-v3.php
Update ok-cablereport-v3.php
Merge pull request #13 from iar42/patch-1

Create ok-cablereport-v3.php