Added matchTemplate()

I added cv.matchTemplate()
http://docs.opencv.org/modules/imgproc/doc/object_detection.html?highlight=matchtemplate

I compiled this with Bea tool(latest version), and `cv.matchTemplate()` worked fine.
However, in my pc, Bea tool makes too large diff, like [this commit](https://github.com/ayapi/opencv-node/commit/9e2476a819e93e8ad81b1268c641163eb9fdb50a#diff-3)
So I'd like you to compile it.