[PATCH v2] msvcrt: Improve memmove performance on i386 and x86_64 architectures.

[Piotr Caban]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49663
Signed-off-by: Piotr Caban 
---
  dlls/msvcrt/math.c   |   2 +-
  dlls/msvcrt/msvcrt.h |   2 +
  dlls/msvcrt/string.c | 263 +++++++++++++++++++++++++++++++++++++++++++
  3 files changed, 266 insertions(+), 1 deletion(-)