More changes - primarily for the Reference Station on Ethernet

[PaulZC]

• ntripServerUseWiFiNotEthernet and ntripClientUseWiFiNotEthernet eat too much RAM on the Ref Stn
  • These have been commented out and marked "For future expansion"
• RTK restarts if the uartReceiveBufferSize or gnssHandlerBufferSize are modified via the system menu
  • Much badness happened if the code attempted to use the new size - when the alloc's etc. were all set up using the old size
• handleGNSSDataTask, wifiSendTcpData and tcpUpdate have been restructured
  • The TCP client / server connections are now handled by tcpUpdate
  • wifiSendTcpData now only sends data - and only does so if the server or client are actually online and at least one client is connected
• Adds menu and config page warnings that TCP Server and Client can not be enabled at the same time
• index_html and main_js are now zipped into form.h automatically - by compile-rtk-firmware.yml
• Fixes the mythical SFE file bug - and adds the preceding slash correctly when reusing the previous log file
• Fixes a bug where the Ethernet web server was not being ended correctly if the RTK was shut down from ConfigViaEthernet
• Displays the correct SD card size and free space in the File Transfer configuration page tab - allows time for the SD size check task to complete in the background
• Fixes a bug where the base and rover RTCM messages were not being displayed in ConfigViaEthernet
• Adds Enable ARP Logging
  • The base location is parsed from incoming RTCM 1005 and 1006 messages and can be logged as a custom NMEA message
  • Accessible from the System menu
• Avoids using String as a function return type
  • Changed so that the String is returned via a pointer instead
  • Prevents badness if the (non-static) String goes out of scope

[nseidle]

This is huge. Thanks! Looks good.