[PATCH 3/6] ntdll: Provide some Unicode helpers for Unix libs.

[Jacek Caban]

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---

I think that those are useful enough to expose them from ntdll instead 
of copying to other libraries (at least gdi32/win32u will need those) 
and mapping casemap multiple times. I used Rtl* names instead of 
exposing ntdll_* as it seems nice to not use existing prototypes, but I 
don't feel strongly about any of above.

   dlls/ntdll/unix/env.c | 97 ++++++++++++++++++++++++++++++-------------
   1 file changed, 68 insertions(+), 29 deletions(-)