[QCAP] patch 3, Adding enumMediaType object

[Robert Shearman]

Rolf Kalbermatter wrote:

>Changelog
>  - dlls/qcap/Makefile.in
>  - dlls/qcap/qcap_main.h
>    dlls/qcap/enummedia.c
>      Add IEnumMediaType object for use by other class objects. This is
>taken
>      from quartz with only minor adaptions.
>  
>

We should be putting these files into a static library that we can link 
to from quartz, qcap & other DirectShow dependent DLLs.

Rob