[maven-release-plugin] prepare for next development iteration

updated to kotlin m7

updating poms for 0.0.8 release

updating poms for 0.0.9-SNAPSHOT development
updated readme for release 0.0.9
updating poms for 0.0.9 release
updating poms for 0.0.9 release
updating poms for 0.0.9 release
Merge branch 'release/0.0.9'