variable collection of policies per component

* new feature variable collection of policies per component in DCAE
* massive refactoring
* dissolved the external PolicyEngine.py into policy_receiver.py
   - kept only the web-socket communication to PolicyEngine
* new /healthcheck - shows some stats of service running
* Unit Test coverage 75%

Change-Id: I816b7d5713ae0dd88fa73d3656f272b4f3e7946e
Issue-ID: DCAEGEN2-249
Signed-off-by: Alex Shatov <alexs@att.com>
diff --git a/pom.xml b/pom.xml
index be86e0b..e476714 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,8 +30,8 @@
   <groupId>org.onap.dcaegen2.platform</groupId>
   <artifactId>policy-handler</artifactId>
   <name>dcaegen2-platform-policy-handler</name>
-  
-  <version>1.2.0-SNAPSHOT</version>
+
+  <version>2.0.0-SNAPSHOT</version>
   <url>http://maven.apache.org</url>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
@@ -113,7 +113,7 @@
             </execution>
           </executions>
         </plugin>
-        <!-- maven-install-plugin is called during "install" phase by default behavior.  it tries to copy stuff under 
+        <!-- maven-install-plugin is called during "install" phase by default behavior.  it tries to copy stuff under
        target dir to ~/.m2.  we do not need it -->
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>