Add Login Function

Signed-off-by: phoenix043030 <4388193@qq.com>
Merge branch 'master' of https://github.com/JustSmallTestDemo1202/SystemServerProject

Conflicts:
	GameServer/src/com/phoenix/server/GameServer.java
	GameServer/src/com/phoenix/server/actor/Human.java
	GameServer/src/com/phoenix/server/message/messageBuilder/DBMessageBuilder.java
	GameServer/src/protobuf/ExternalCommonProtocol.proto
	GameServer/src/protobuf/InternalCommonProtocol.proto