[MIG] base external dbsource

* Migration of base_external_dbsource to odoo 9.0

* Fixing test error

* Moving test from yaml to python

* Fixing pylint error in test class

* Placeholder added to connection string text zone

* improving test coverage

OCA Transbot updated translations from Transifex

base_external_dbsource/models/__init__.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Daniel Reis
+#    2011
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from . import base_external_dbsource