use floating-point precision from "precise" to "fast=2"

We can have achieve performance gain, and WX library
don't really need precise calculations

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>
Fix creation of wxBitmap from monochrome wxIcon or wxCursor in wxMSW.

Don't suppose that we always have hbmColor because this is not true for
monochrome icons/cursors. Create our own bitmap in this case.

Closes #16512.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77517 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Merge branch 'master' of ../wxWidgets_vanilla_trunk-svn into merge
sync with upstream (SVN); patched for ICC; removed files we do not support

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>
restore our README.md for Github

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>