Revert "Removing OpenNebula code"

This reverts commit 5af67b3295859894c458e94c979834e6a20ffb52.

Change-Id: I0d758b038057af83df007c153a7baa23e974c7c0
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>
diff --git a/requirements-test.txt b/requirements-test.txt
index f461166..88df89c 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #######################################################################################
--e RO-plugin
+-e file:///home/ed1000/git/RO/RO-plugin
     # via -r requirements-test.in
 coverage==6.2
     # via