build: implements release signing using maven+signing instead of maven-publish+bintray
Merge branch 'feature/implementBuildSigning' into develop

* feature/implementBuildSigning:
  build: implements release signing using maven+signing instead of maven-publish+bintray
docs: amends README with more details
sample: construct a basic sample application/test
docs: notes release signing, repositories, and signing key
Merge branch 'feature/refineDocumentation' into develop

* feature/refineDocumentation:
  docs: notes release signing, repositories, and signing key
  sample: construct a basic sample application/test
  docs: amends README with more details