Update TCP server to better work as an NTRIP or base caster

[LeeLeahy2]

Remember to enable some RTCM messages, link fails when no RTCM data is being sent!

Changes:

• TcpServer: Periodically display data sent messages for all clients
• TcpServer: Output TCP Server, NTRIP Caster or Base Caster messages
• TcpServer: Make port selection in tcpServerEnabled
• TcpServer: Determine operating mode in tcpServerEnabled
• TcpServer: Select WiFi mode in tcpServerEnabled
• TcpServer: Move the client handling into tcpServerClientUpdate
• TcpServer: Rework the client connection logic
• TcpServer: Periodically display all of the client connections
• TcpServer: Separate the tcpServerTimer from the tcpServerClientTimers
• TcpServer: Use client states to wait for and process caster request
• TcpServer: Handle client allocation failures
• TcpServer: Don't send data until the client enters *_CLIENT_SENDING_DATA