Made OpenMP optional
Made OpenMP optional

Change-Id: Idc009ffd8901535482d5a5fc1d3c677840e68675

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