CLOUDSTACK-4874: rever the previous commits. Service offering details are already being returned in "serviceofferingdetails" field of the service offering response
ResourceMetaData (Resource details) fixes:

* changed name for TaggedResourceType enum to ResourceObjectType as this enum is used both by ResourceMetaData and ResourceTags code
* enhanced the enum with extra fields resourceTagsSupport (boolean) and metadataSupport identifying if the resource supports tags and/or metadata.
* cleanup unused @Inject objects from the ResourceMetaDataManager