* [NTOS:EX] Various fixes for Daylight Saving Time transitions
* Fix automatic time changes when DST starts and ends.
* Currently it takes two cycles of the update provided by w32time to make the actual change.
* Convert Eric Kohl's TimeZoneID code contained in ExRefreshTimeZoneInformation to a new function.
* Use this new function in ExpSetTimeZoneInformation and ExRefreshTimeZoneInformation functions.
CORE-19290