Merge branch 'add/python-modules' into 'master'

recipes-devtools/python/python-ISStreamer_0.2.2.bb

recipes-devtools/python/python-crc16_0.1.1.bb

recipes-devtools/python/python-dweepy_0.3.0.bb

recipes-devtools/python/python-mysql_0.0.1.bb

recipes-devtools/python/python-paho-mqtt_1.3.1.bb

recipes-devtools/python/python-protobuf_3.2.0.bb

recipes-devtools/python/python-pyserial_3.4.bb

recipes-devtools/python/python-six_1.11.0.bb

recipes-devtools/python/python-websocket-client_0.44.0.bb