Allow for Pittmesh.net/ipcalc to calc non UBNT/TP-Link devices

[Protagonistics]

If IPCalc detects ubnt or tp-link mac addresses it works fine. If it does not it throws the error "The MAC address does not appear to be from a PittMesh standard manufacturer (Ubiquiti, TP-Link). The IP address calculation may be invalid."

Please remove this check entirely and just convert the Macs to IPs anyway without a warning.