Make now runs lint and any unit tests.

Also update vendored voltha-go to add new api updates

Change-Id: I08e11ae043b1db46fed4cc64fddc890a6729dedf
diff --git a/.gitignore b/.gitignore
index 229b4bd..69d9456 100644
--- a/.gitignore
+++ b/.gitignore
@@ -65,3 +65,5 @@
 # Development versions of locally built libraries
 python/local_imports
 
+# test output
+tests/results