[regrep] Final Registry schema files

Anne,

There has been one more update since I sent you the files. All 3 files
were effected by the one bug fix. Sorry if this meant rework.

I am copying team so we can have all of us reviewing the schema for
correctness. Team, please spend time reviewing this since it is a labour
intensive process and is error prone. Thansk in advance for your help.

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Regards,
Farrukh