Cleanup PIP/Database-related code.

Ensure database schema/naming consistent across repos.
Ensure PIP implementation consistent across repos.
Cleanup unused imports and made sure licenses are ok.

Issue-ID: POLICY-1471
Change-Id: I20a325fe3e66e6ae400e603ec366315aea716993
Signed-off-by: Joshua Reich <jreich@research.att.com>
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
diff --git a/controlloop/common/pom.xml b/controlloop/common/pom.xml
index d9165ae..397cd59 100644
--- a/controlloop/common/pom.xml
+++ b/controlloop/common/pom.xml
@@ -32,6 +32,7 @@
   <artifactId>common</artifactId>
 
   <modules>
+    <module>database</module>
     <module>guard</module>
     <module>coordination</module>
     <module>eventmanager</module>