Visual Finder: configuring over XML

The XML tag VisualFinder contains one list (<std_vector>) of <AlgorithmEval>, that each contains one algorithm with a certain initial evaluation.

An example could look like this:

    <VisualFinder>
      <std_vector>
        <AlgorithmEval>
            <FaceDetection scale="1.500000" cascade_name="haarcascade_frontalface_alt.xml" nested_cascade_name="haarcascade_eye_tree_eyeglasses.xml"  />
          <AlgType>1</AlgType>
          <Eval>0.990000</Eval>
        <AvgTime>0.000000</AvgTime>
        </AlgorithmEval>
      </std_vector>
    </VisualFinder>