Upgrade dependency management to OSGi R7

[kwin]

Since AEM 6.5 OSGi R7 is fully supported (and with AEM 6.4 at least partially, compare with https://helpx.adobe.com/experience-manager/kt/eseminars/gems/Using-OSGi-R7-in-AEM.html). The according dependencyManagement in the parent (

aem-project-archetype/src/main/archetype/pom.xml

Line 492 in 4774148

<!-- OSGi Dependencies -->

) should be updated to reference the supported versions in AEM 6.5. This most probably requires a new version of the archetype though.
Also instead of the aggregate artifacts the individual ones should be used (to keep the classpath as lean as possible). Both artifact types can be defined in the dependencyManagement, though. For further information about individual vs. aggregate dependencies please refer to https://issues.apache.org/jira/browse/SLING-7384?focusedCommentId=16327433&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16327433