Enable / disable TXF deprecated features

TXF deprecated features included savepoints, secondary RM, miniversion and roll forward. Please enable it if you want to use the APIs.

Supported on: SUPPORT_Win8
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSystem\CurrentControlSet\Policies
Value NameNtfsEnableTxfDeprecatedFunctionality
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

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