relocate repo files so ND2 is the only code

lib/App/Netdisco/DB/schema_versions/App-Netdisco-DB-37-38-PostgreSQL.sql

@@ -0,0 +1,7 @@
+BEGIN;
+
+ALTER TABLE device_port DROP COLUMN is_uplink_admin;
+ALTER TABLE device_port ADD COLUMN "slave_of"  text;
+ALTER TABLE device_port ADD COLUMN "is_master" bool DEFAULT false NOT NULL;
+
+COMMIT;