relocate repo files so ND2 is the only code

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

@@ -0,0 +1,35 @@
+use utf8;
+package App::Netdisco::DB::Result::Topology;
+
+use strict;
+use warnings;
+
+use base 'DBIx::Class::Core';
+
+__PACKAGE__->table("topology");
+
+__PACKAGE__->add_columns(
+  "dev1",
+  { data_type => "inet", is_nullable => 0 },
+  "port1",
+  { data_type => "text", is_nullable => 0 },
+  "dev2",
+  { data_type => "inet", is_nullable => 0 },
+  "port2",
+  { data_type => "text", is_nullable => 0 },
+);
+
+__PACKAGE__->add_unique_constraint(['dev1','port1']);
+__PACKAGE__->add_unique_constraint(['dev2','port2']);
+
+__PACKAGE__->belongs_to(
+  device1 => 'App::Netdisco::DB::Result::Device',
+  {'foreign.ip' => 'self.dev1'}
+);
+
+__PACKAGE__->belongs_to(
+  device2 => 'App::Netdisco::DB::Result::Device',
+  {'foreign.ip' => 'self.dev2'}
+);
+
+1;