Version 1.1.6[Common]Updated to dlib19.7.[Common]Updated to WebCamTextureToMatHelper.cs v1.0.3.[Common]Updated “human_face_68_sp.dat” and “human_face_68_sp_for_mobile.dat”.

Version 1.2.6 [Common]Added “sp_human_face_17.dat”, “sp_human_face_17_mobile.dat” and “sp_human_face_6.dat”. [Common]Changed the training dataset of Shape Predictor model. Since the training dataset consists of Flickr CC0 licensed images, the Shape Predictor model files are available for commercial use. [Common]Added BenchmarkExample.