Method getCentre

Source/Dimension.hpp:37–37

		int getHeight() const { return mHeight; }

        cPosition getCentre() const { return { mWidth / 2, mHeight / 2 }; };

        cDimension operator/(const cDimension& pDim) {
            return cDimension(mWidth / pDim.mWidth, mHeight / pDim.mHeight);