Changes

Summary

1. allow features to be deployment technology independent (commit: 710fc7b) (details)

Commit 710fc7be0eaa74a21b1aef28dd8ebfc710252d21 by Lukas Harzenetter allow features to be deployment technology independent (commit: 710fc7b)
	org.eclipse.winery.repository.rest/src/main/java/org/eclipse/winery/repository/rest/resources/servicetemplates/topologytemplates/TopologyTemplateResource.java
	org.eclipse.winery.repository.rest/src/test/java/org/eclipse/winery/repository/rest/resources/servicetemplates/topologytemplates/TopologyTemplateResourceTest.java
	org.eclipse.winery.repository.rest/src/test/resources/servicetemplates/topologytemplates/availableFeatures-deployTechIndependent.json
	org.eclipse.winery.model.tosca/src/main/java/org/eclipse/winery/model/tosca/utils/ModelUtilities.java