Added a Python example for find_candidate_object_locations

python_examples/find_candidate_object_locations.py

+#!/usr/bin/python
+# This example shows how to use find_candidate_object_locations()
+
+import dlib
+from skimage import io
+
+image_file = '../examples/faces/2009_004587.jpg'
+img = io.imread(image_file)
+
+# Locations of candidate objects will be saved into rects
+rects = []
+dlib.find_candidate_object_locations(img, rects, min_size=500)
+
+windows = []
+for d in rects:
+    windows.append([d.top(), d.left(), d.bottom(), d.right()])
+
+print len(windows)
+print (image_file, windows)