Remove reference to strnlen from msvcrt.def

Patch by Erik van Pienbroek <erik@vanpienbroek.nl>

git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@5963 4407c894-4637-0410-b4f5-ada5f102cad1
d2d1effects.h: Added new headers file.

git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@5964 4407c894-4637-0410-b4f5-ada5f102cad1
Added a few missing D2D1 declarations.

git-svn-id: https://svn.code.sf.net/p/mingw-w64/code@5965 4407c894-4637-0410-b4f5-ada5f102cad1