Add missing pom.xml files

Add missing modules to top level pom.xml and add missing
pom files for core, adaptors, northbound and plugin directories.
Also rolled version to next minor version (1.2.0-SNAPSHOT) to avoid
conflict with compiled code from individual repos during
transition to new structure.

Issue-ID: CCSDK-3009
Signed-off-by: Dan Timoney <dtimoney@att.com>
Change-Id: If58175bd2519955cd896290cac7001df4eb62287
diff --git a/northbound/features/pom.xml b/northbound/features/pom.xml
index 88a4cbb..6982508 100755
--- a/northbound/features/pom.xml
+++ b/northbound/features/pom.xml
@@ -11,7 +11,7 @@
 
     <groupId>org.onap.ccsdk.sli.northbound</groupId>
     <artifactId>slinorthbound-feature-aggregator</artifactId>
-    <version>1.1.1-SNAPSHOT</version>
+    <version>1.2.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>ccsdk-sli-northbound :: features</name>