Merge branch 'comm' into 'dev'

.vs/slnx.sqlite

vs/LO23/Client/App.xaml.cs

vs/LO23/Client/Client.csproj

vs/LO23/Client/comm/Client.cs

vs/LO23/Client/comm/CommClient.cs

vs/LO23/Client/comm/IDataToCommImpl.cs

vs/LO23/Client/data/Comm_calls_Data_Client_Impl.cs

vs/LO23/Server/Program.cs

vs/LO23/Server/Server.csproj

vs/LO23/Server/comm/ClientHandler.cs

vs/LO23/Server/comm/CommServer.cs

vs/LO23/Server/comm/Server.cs

vs/LO23/Server/data/Comm_calls_Data_Server_Impl.cs

vs/LO23/Shared/Shared.csproj

vs/LO23/Shared/comm/AnnounceUserMessage.cs

vs/LO23/Shared/comm/MessageToClient.cs

vs/LO23/Shared/comm/MessageToServer.cs

vs/LO23/Shared/comm/TcpClientHandler.cs

vs/LO23/Shared/comm/messages/AnnounceUserMessage.cs

vs/LO23/Shared/comm/messages/UserAnnouncedMessage.cs