[PATCH resend] kernelbase: Improve Get{, Dynamic}TimeZoneInformation() performance.

[Akihiro Sagawa]

How do we improve the performance?
___________________

Stellaris calls the above API massively. It suffers on poor performance
of the API after Wine 4.0-rc1.
By caching localized time zone name string, this patch achieves over 50
times better performance compared with the current implementation.
Although the code looks an ugly bit, we need a speed.

Wine-Bugs: https://bugs.winehq.org/show_bug.cgi?id=49808
Signed-off-by: Akihiro Sagawa <sagawa.aki(a)gmail.com>
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 dlls/kernelbase/locale.c | 47 ++++++++++++++++++++++++++++++++++------
 1 file changed, 40 insertions(+), 7 deletions(-)