Merge v3.4

[nseidle]

Note: If you are running firmware v3.x or greater, you can load the latest firmware or release candidate over the air. If you are using older firmware (2.x or lower) you will need to load v3.x firmware using a USB connection. We have created a Windows GUI to ease this process. Please see Updating Firmware from GUI for a step by step process.

Changes in this release:

• Expand support for RTK Reference Station hardware (Ethernet, SPI, SD_MMC, etc).
• Bug Provision Device with custom ThingStream device profile ID gives "JSON error" #459 - Fix failed MQTT connections when getting L-Band key updates.
• Bug Bluetooth serial config: Possible error when entering base coordinates #458 - Allow coordinate formats DDMMSS, DD MM SS, and DD-MM-SS (no decimals).
• Bug facet v3.3 Failed to save base coordinates (latitude) to file #473 - Fix common coordinate entry in Config page
• Bug Potential logic error on the battery level determination  #462 - Detect battery levels outside of limits.
• Bug - Fix naming of reused log to avoid filename 'SFE'.
• Bug - Fix alignment of RTCM message rates during Base mode.
• Bug Rate of rtcm messages (1074,1084,1094,1124 and 1230) does not match what was entered in wifi config. #443 - Fix RTCM generation due to NAV2 system being enabled.
• Feature Enable UBX-SEC-UNIQID for logging #476 - Show ZED-F9x unique ID in system menu and log
• Feature RTK Express providing hostname when getting address from hotspot #453 - Add MDNS. Once enabled, device is accessible from 'rtk.local' as opposed to an IP address that may change.
• Feature Bluetooth serial config: Possible error when entering base coordinates #458 - Add decimal-less coordinate entry (DDMMSS, DD-MM-SS, and DD MM SS).
• Feature Allow disabling of RTK L-Band auto-reset during endless RTK Float #475 - Disable RTK L-Band auto-reset