Implement CapabilityOrderBy for getChildren
Add No ContentStream exception when calling createDocument
Implement CapabilityOrderBy forGetCheckedOutDocs
Add PropertyDefinition restriction(orderable and MULTI cardinality is
not allowed)
Comment out orderable check in orderBy parameter

Spec 2.1.3.3.2 requires orderable attribute check, but this attributes
can vary even if property ids are same. When object list can have
different type objects, it is unclear how to sort them.
Refactor getChildren(integrating to compileService)
Index cmis:parentId for a document in Solr indexing

IN_FOLDER query needs cmis:parentId indexed.
Document doesn't have cmis:parentId, so fetch it by getObjectParents.
Implement sorting for search query
Fix bugs of query alias
Add PropertyData null check in SolrUtil

Null check of value is not sufficient. Filter or CMIS-SQL comumn
specification can result in null PropertyData.
Fix incorrect Solr query in IN_TREE search query