1.0 version of SmqCat

    1. Create a SmqCat class as collector
    2. parallelly collect log and tcpdump info from edge
    3. data is temporailly stored in /var/tmp/XXX
    4. you can kill all collector threads as you like
TODO:
    1. Abstract VSM&EDGE class
    2. Add Log&Tcpdump DB class
    3. Write log and Tcpdump context into DB