Create test client and server utilities

As with the original metaserver, the "TestServer" and "TestClient"

Unlike the original, more options should be available for the utilities:

TestServer Options:
    - ip
    - keepalive interval
    - attributes to register ( something like --attribute="name=value" --attribute="name2=value2" )

TestClient Options:
     - keep alive interval
     - attributes ( same as server )
     - chat sequence ( probably via config file )
       something like --chat-config=foo.txt
       containing something like:
              keepalive
              sleep 10
              listresp
              sleep 10
              terminate
       if no chat sequence is defined, then just perform the default chat sequence, the same as what it does
       in the original ( keep-alive x3, sleep, list, terminate, terminate )