[ADD] D9T GmbH CLA

closes #5433

doc/cla/corporate/d9t.md

+Germany, 2015-02-23
+
+D9T GmbH agrees to the terms of the Odoo Corporate Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Daniel Kraft, daniel.kraft@d9t.de https://github.com/wamdam
+
+List of contributors:
+
+Daniel Kraft, daniel.kraft@d9t.de https://github.com/wamdam
+Oliver Roch, oliver.roch@d9t.de https://github.com/veroc