Add a commented out line for #spark.cdm.feature.constantColumns.types

Author: johnsmartco

src/resources/cdm-detailed.properties

@@ -299,6 +299,7 @@ spark.cdm.perfops.ratelimit.target                40000
 #               because some type values contain commas, e.g. lists, maps, sets, etc.
 #-----------------------------------------------------------------------------------------------------------
 #spark.cdm.feature.constantColumns.names        const1,const2
+#spark.cdm.feature.constantColumns.types 
 #spark.cdm.feature.constantColumns.values       'abcd',1234
 #spark.cdm.feature.constantColumns.splitRegex   ,