[PATCH v6 0/7] MR820: Implement roothandle parameter NtLoadKeyEx

[Santino Mazza (＠tati1454)]

--
  v6: kernelbase: Implement RegLoadAppKey.
      ntdll: Implement REG_APP_HIVE flag
      server: Create \REGISTRY\A hive.
      ntdll: Rename NtLoadKeyEx parameters.
      ntdll: Pass filename to server in NtLoadKeyEx.
      ntdll/test: Test for NtRegLoadKey roothandle parameter.
      winnt.h: Define REG_APP_HIVE and REG_PROCESS_PRIVATE.

https://gitlab.winehq.org/wine/wine/-/merge_requests/820