select MAC Address display format on Node and Device Port search

Netdisco/lib/App/Netdisco/DB/Result/NodeIp.pm

@@ -7,6 +7,8 @@ package App::Netdisco::DB::Result::NodeIp;
 use strict;
 use warnings;
 
+use Net::MAC;
+
 use base 'DBIx::Class::Core';
 __PACKAGE__->table("node_ip");
 __PACKAGE__->add_columns(
@@ -206,4 +208,12 @@ between the date stamp and time stamp. That is:
 
 sub time_last_stamp  { return (shift)->get_column('time_last_stamp')  }
 
+=head2 net_mac
+
+Returns the C<mac> column instantiated into a L<Net::MAC> object.
+
+=cut
+
+sub net_mac { return Net::MAC->new(mac => (shift)->mac) }
+
 1;