Tiny changes
[Server] [Roster] Duplicate file from Client.
[Server] [User] Duplicate file from Client. Add Roster.
[CLIENT] [ClientSocket] ClientSocket -> Client
[CLIENT] [Client] Client -> Main
[SERVER] [Server] Server -> Main
[SERVER] [Socket] Socket -> Server
[PooledTask] Add default constructor
[SERVER] [Message] Duplicate class from Client.
[SERVER] [Time] Duplicate class from Client
[NetTask] Create class NetTask for processing socket.