Merge fix

Cherry pick UDPLink range for fixes from Stable

Ready To Fly support based on MAV_SYS_STATUS_PREARM_CHECK

Shorten meta data keys for smaller file sizes

Add mutex for _sessionTargets access. Remove range_for usage. General cleanup

New standalone mission editor unit test

Support for Vehicle and Firmware classes

Comp Info support for http downloads

Upload pre-check must be vehicle-class based

Support parameter meta data coming from COMPONENT_INFORMATION as well as old system

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Support comp info param metadata and gzip json

Harden FTPManager::download against packet loss

Component Information FTP download support

More work on vehicle connect state machine(s)

New initial connect state machine which supports COMPONENT_INFORMATION

Special case handling for Cube Orange/Yellow

LinkInterface and Vehicle uses mutexes to synchronize writing bytes to the link instead of queued signals

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Added a transmitOnly flag to UDP config. When enabled, the socket receive buffer is set to zero such that no data is ever received. Also updated the MavlinkSettings page such that new config settings respect the setting visibility.

Updated mavlink forwarding implementation to forward all mavlink messages received on all channels onto a single UDP port. A new mavlink forwarding UDP link is created if forwarding is enabled. The mavlink settings page now has a Fact checkbox for enabling forwarding and a fact text field for specifying the host name.

Added mavlink forwarding as an option to UDP connections. Enabling this setting will cause every mavlink packet received by QGC to be forwarded on the link, with the exception of packets originating from said link.

Add support for Json file string translations

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

App messages now use simple modal message dialogs. Vehicle messages continue to use non-modal popup.

Set RC To Param support

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Add support for chunked STATUSTEXT

Remove unused HIL code

 - UVify Core board support is implemented.