TODO:

• adjust the SQL scripts (create and update) and add a column TENANT_ID_ on ACT_RE_PROCDEF table
• add a field tenantId on entity class
• adjust the unique constraint to (process-definition-key, version, tenant-id) - also adjust the java docs (e.q. latest() on query)
• set the tenant-id on the entity while insert it on deploying
• inherit the tenant-id from the deployment by default
• add a method on the ProcessDefinitionQuery to filter by a tenant-id or a list of tenant-ids (tenant-id of the process definition in ...)
• adjust the REST-API (dto for query request / response)