[PATCH 6/6 v2] ucrtbase: Implement quick_exit and _crt_at_quick_exit

[Piotr Caban]

From: Fabian Maurer <dark.shadow4(a)web.de>

Signed-off-by: Fabian Maurer <dark.shadow4(a)web.de>

Signed-off-by: Piotr Caban <piotr(a)codeweavers.com>
---
  dlls/msvcrt/exit.c         | 12 +++++--
  dlls/ucrtbase/tests/misc.c | 85 
+++++++++++++++++++++++++++++++++++++++++++++-
  2 files changed, 93 insertions(+), 4 deletions(-)