VOL-1604 Implementing storage of MIB entities in etcd.

Updated tests to work and pulled a test update from https://gerrit.opencord.org/#/c/12815/. The functional changes were merged some time ago, but the test was not.
Updated requirements to match those in voltha-openonu-adapter. This fixed an issue where the test would fail on importing the etcd database class
Change-Id: I13787dbf740020eb2d7f2c6498f9eafe1b461cba
diff --git a/VERSION b/VERSION
index 1a03094..70426f8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1.9
+0.2.0-dev