Cleanup code and add pseudo-code for Client.java
Cleanup code and add pseudo-code for Client.java

- The following methods were cleaned up and contains pseudo-code
  * Client(String, int, User) constructor . No pseudo-code was added
  * sendMessage(String, User)
  * sendMessage(Message)
  * connect()
  * disconnect()
  * readMessage()
  * whosConnected()
  * isRecipient(String)
  * getConversation(String)
  * handleGET_message(Message)
  * handleACK_message(Message)
  * handleDISCONNECT_message(Message)
  * handleUSERS_message(Message)

- The following inner class were cleaned up and contains pseudo-code
  * ListenServer
  * SendGET_request

Clumsy-Coder/CPSC3780-Project,Clumsy-Coder/CPSC3780-Project