Added delta and norm features
Added delta and norm features

Change-Id: I1a5a65197339e3911d13c388b90c0df4f052ca09

vmarkovtsev/veles.sound_feature_extraction,vmarkovtsev/veles.sound_feature_extraction,Samsung/veles.sound_feature_extraction,vmarkovtsev/veles.sound_feature_extraction,Samsung/veles.sound_feature_extraction,Samsung/veles.sound_feature_extraction,vmarkovtsev/veles.sound_feature_extraction,Samsung/veles.sound_feature_extraction