uavcan: increased thread prio, reduces roundtrip latency by a factor of 5..7
catapult launch detection: fix integration logic
sdlog2: add vision log struct
sdlog2: added vision estimate logging
sdlog2: update vision log fields
sdlog2: added BOTTOM_DISTANCE again
sdlog2:  minor corrections
sdlog2: minor improvements
Improved UAVCAN status reporting
Merge pull request #1318 from PX4/uavcan_cli_improvements

Improved UAVCAN status reporting
Merge pull request #1317 from TSC21/sdlog2_vision

Sdlog2: add vision estimation logging
Decrease I2C timeout in config so it matches the previous 500 us timeout as close as possible. This is necessary after fixing the NuttX I2C timeout logic
Improve startup and payload handling
Support additional payload commands and let commander ignore them
Ignore single channels during PWM output
Merge pull request #1323 from hsteinhaus/ignore_channels2

Ignore single channels during PWM output
Merge pull request #1321 from PX4/startup_payload

Improve startup and payload handling
Merge pull request #1322 from PX4/payload_commands

Support additional payload commands and let commander ignore them
Merge pull request #1302 from PX4/catapultlaunchdetectorhotfix

catapult launch detection: fix integration logic
mavlink: code style only fix