Refactor MAC utilities into a single class (#15379)

* Refactor MAC utils to a new utility class

* Apply fixes from StyleCI

* Inline functions
Add tests
Handle bridgeid format

* Apply fixes from StyleCI

* Dedicated code path for stp bridge parsing, and improve STP output a bit

* Correctly parse dot1dBaseBridgeAddress and don't store int in bool field

* trim any unexpected character from bridge addresses, add extra test data.

* better comment

* barsBridge can handle dot1dBaseBridgeAddress correctly now

* parseBridge, check for properly formatted mac first.

* update test data, empty data = empty mac

* Fix new usage after rebase

* import

---------

Co-authored-by: StyleCI Bot <bot@styleci.io>

includes/html/pages/device/port/macaccounting.inc.php

@@ -1,6 +1,7 @@
 <?php
 
 use LibreNMS\Config;
+use LibreNMS\Util\Mac;
 
 // FIXME - REWRITE!
 $hostname = $device['hostname'];
@@ -186,7 +187,7 @@ if ($vars['subview'] == 'top10') {
             echo '
       <table>
         <tr>
-          <td class=list-large width=200>' . \LibreNMS\Util\Rewrite::readableMac($acc['mac']) . '</td>
+          <td class=list-large width=200>' . Mac::parse($acc['mac'])->readable() . '</td>
           <td class=list-large width=200>' . $addy['ipv4_address'] . '</td>
           <td class=list-large width=500>' . $name . ' ' . $arp_name . '</td>
           <td class=list-large width=100>' . \LibreNMS\Util\Number::formatSi($acc['cipMacHCSwitchedBytes_input_rate'] / 8, 2, 3, 'bps') . '</td>