Missing solutions for static LIB (Feature #3813)

When CMake creates the projects for Visual Studio it creates a configuration for Release and one for Debug.

But both are configured to create all output files only as DLL's.
In most cases it is not handy to deliver a bunch of DLL's with the application.
And as OpenCV depends on many compiler settings (built with libpng or not, built with OCL or not, built with GPU or not, etc) these DLL's cannot be interchanged with other applications. So the dream to put the OpenCV DLL's into a common folder is an unrealistic dream.

Each application requires its own DLL's that have been built with the settings that the application needs.

So it is much more intelligent to compile OpenCV as a static LIB file which results in less megabyte because the compiler includes only the code that is really in use and does not export EVERYTHING like in a DLL.

But the problem is that there is currently no configuration to build OpenCV as static Library.

I suggest that there should be 4 default configurations:

1.) Debug_DLL
2.) Release_DLL
3.) Debug_LIB
4.) Release_LIB

In the settings it is required that the DLL uses the switch CVAPI_EXPORTS while the LIB must not.

When you build OpenCV without CVAPI_EXPORTS you will notice that there is something wrong in the OCL project which throws a lot of errors. I did not further investigate that because I don't use it.