Add iotd program framework source code

guowenxue

2021-04-20 c7b6f4f68a6c9e8e83849601bd0f5240c47c317f

 mqttd/mosquitto/build.sh

@@ -1,6 +1,6 @@
#!/bin/bash

MQTT_LIB=mosquitto-1.5.8
MQTT_LIB=mosquitto-1.6.3

LIBPATH=/usr/local/lib/libmosquitto.so