introduce typeID to Relationship.Type and use it in filters and API

...rc/org/sleuthkit/datamodel/CaseDbSchemaVersionNumber.java

...ngs/java/src/org/sleuthkit/datamodel/CollectionUtils.java

...ava/src/org/sleuthkit/datamodel/CommunicationsFilter.java

...va/src/org/sleuthkit/datamodel/CommunicationsManager.java

bindings/java/src/org/sleuthkit/datamodel/Relationship.java

bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java

...st/org/sleuthkit/datamodel/CommunicationsManagerTest.java