[PATCH 1/3 v2] msvcrt: Move big numbers implementation to new file.

[Piotr Caban]

Signed-off-by: Piotr Caban <piotr(a)codeweavers.com>
---
  dlls/msvcrt/bnum.h   | 136 +++++++++++++++++++++++++++++++++++++++++++
  dlls/msvcrt/string.c | 116 +-----------------------------------
  2 files changed, 138 insertions(+), 114 deletions(-)
  create mode 100644 dlls/msvcrt/bnum.h