Add Sonar Kotlin support

Add Sonar Kotlin support

Rework parent pom so configuration can be inherited for all
modules from root ccsdk-apps/pom.xml.
Also updated some pom description so it is better presented
within Sonar.

These commands can be used locally to publish report to Sonar:

   mvn clean install -e -Dsonar
   mvn sonar:sonar -e -Dsonar -Dsonar.host.url=https://sonar.onap.org

Note: kotlin code coverage is not fully functional due to
https://github.com/jacoco/jacoco/issues/763
That issue has been fixed in jacoco master branch, but hasn't
been released. Once released, in version 0.8.3, we can override
version of jacoco plugin for ccsdk-apps.

Change-Id: Ic382a4d0df9d14a82536993d2dfa55d7f105f951
Issue-ID: CCSDK-725
Signed-off-by: Alexis de Talhouët <adetalhouet89@gmail.com>