Add DC1394 support on Windows (Patch #1967)

With very few modifications on what is done for Linux, it is possible to add dc1394 firewire support on Windows.
That's what the attached patch is doing.

Note: It has been succcessfully tested on Windows XP SP3 32 bits using mingw32 and a Marlin F-146B camera (from Allied Vision Technologies).

opencv_version -b :

General configuration for OpenCV 2.4.0 =====================================

Platform:
Host: Windows 5.1 x86
CMake: 2.8.5
CMake generator: MinGW Makefiles
CMake build tool: C:/MinGW32/bin/mingw32-make.exe
Configuration: Release

C/C++:
Built as dynamic libs?: NO
C++ Compiler: C:/MinGW32/bin/mingw32-g++.exe (ver 4.6.2)
C++ flags (Release): -fPIC -mstackrealign -Wall -march=i686 -fomit-frame-pointer -msse -msse2 -mfpmath=sse -ffunction-sections -O2 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fPIC -mstackrealign -Wall -march=i686 -fomit-frame-pointer -msse -msse2 -mfpmath=sse -ffunction-sections -g -O0 -DDEBUG -D_DEBUG -ggdb3
C Compiler: C:/MinGW32/bin/mingw32-gcc.exe
C flags (Release): -fPIC -mstackrealign -Wall -march=i686 -fomit-frame-pointer -msse -msse2 -mfpmath=sse -ffunction-sections -O2 -DNDEBUG -DNDEBUG
C flags (Debug): -fPIC -mstackrealign -Wall -march=i686 -fomit-frame-pointer -msse -msse2 -mfpmath=sse -ffunction-sections -g -O0 -DDEBUG -D_DEBUG -ggdb3
Linker flags (Release):
Linker flags (Debug):

OpenCV modules:
To be built: calib3d contrib core features2d flann gpu highgui imgproc legacy ml nonfree objdetect photo stitching ts video videostab
Disabled: world
Disabled by dependency: -
Unavailable: androidcamera java python

GUI:
QT 4.x: NO
Win32 UI: YES
OpenGL support: NO

Media I/O:
ZLib: build (ver 1.2.6)
JPEG: build (ver 62)
PNG: build (ver 1.5.9)
TIFF: build (ver 42)
JPEG 2000: build (ver 1.900.1)
OpenEXR: NO

Video I/O:
DC1394 1.x: NO
DC1394 2.x: YES (ver 2.2.0)
FFMPEG: YES (prebuilt binaries)
codec: YES (ver 53.61.100)
format: YES (ver 53.32.100)
util: YES (ver 51.35.100)
swscale: YES (ver 2.1.100)
gentoo-style: YES
OpenNI: NO
OpenNI PrimeSensor Modules: NO
PvAPI: NO
DirectShow: YES
XIMEA: NO

Other third-party libraries:
Use IPP: NO
Use TBB: NO
Use Cuda: NO
Use Eigen: NO
Use Clp: NO

Python:
Interpreter: NO

Documentation:
Build Documentation: NO
Sphinx: NO
PdfLaTeX compiler: NO

Tests and samples:
Tests: YES
Performance tests: YES
Examples: YES

Install path: D:/CAMISOLE/workspace_camisole/libraries/opencv/opencv_build/install

cvconfig.h is in: D:/CAMISOLE/workspace_camisole/libraries/opencv/opencv_build
-----------------------------------------------------------------