[PATCH] msvcrt: Optimize memmove implementation.

[Piotr Caban]

Based on Torbjorn Granlund code from Glibc.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49663
Signed-off-by: Piotr Caban <piotr(a)codeweavers.com>
---
  dlls/msvcrt/string.c | 91 ++++++++++++++++++++++++++++++++++++++++++--
  1 file changed, 87 insertions(+), 4 deletions(-)