8022224: Rare bug in JISAutodetect charset detected by FindDecoderBugs test
Summary: to update JISAutodetect decoder to return overflow appropriately.
Reviewed-by: chegar, martin

8073152: Update Standard/ExtendedCharsets to work with module system
Summary: to reorganize the standard and extendec charset configuration during build time
Reviewed-by: alanb

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com