code: public ExtendedRelation addTilesRelationship(String baseTableName,
  			TileTable tileTable, UserMappingTable userMappingTable) {
  		return addRelationship(baseTableName, tileTable, userMappingTable);
  	}
docs: Adds a tiles relationship between the base table and user tiles related
  table. Creates the user mapping table and a tile table if needed.
  
  @param baseTableName
  base table name
  @param tileTable
  user tile table
  @param userMappingTable
  user mapping table
  @return The relationship that was added
  @since 3.2.0