-Modify READEME.md
-Rename READEME.md to README.md
Delete the query of port information /port/json
Add the port info in switch query.
SwitchInfo:
	1.Use OFPortStatistics  type to store the port's information.
	2.Serialize the port's info
		portNumber
		recvPackets
		recvBytes
		transmitPackets
		transmitBytes
1.Use thread to query switch's information(port... etc) for each
2.Use SwitchInfo to store the switch information (dpid, flow table,
		ports)
Complete switch's query;
	- dpid
	- flow entry
		- flow actions
	- ports
SwitchResource:
	Use a thread to query info info
SwitchInfo:
	Serialize switch info to json.
1.Add a python script to test the adapter's function
2.The script will use the restAPI to query the infomation and output
with JSON format