Log all PX4 info messages to the PX4Log as well

[Kjkinney]

Describe problem solved by the proposed pull request
We have noticed a lack of information being displayed in the "Logged Messages" console on PX4 Flight Review. It currently only displays WARN level messages.

Test data / coverage
https://review.px4.io/plot_app?log=153160ed-f8a0-4510-954d-4f77b224fa06

Here is a log showing this implemented on a fixed wing vehicle. If you look at the console at the bottom it is now spitting out INFO messages as well.

Describe your preferred solution
I lowered the log level allowed for logging messages in the code.

FYI
@Antiheavy

[LorenzMeier]

Given all these messages are passed through to the user (which means they are considered relevant) it is fair to have all of them in the log. If things are too verbose then we need to fix this by turning text messages intoned QGC UI instead.

[Antiheavy]

This is a huge improvement in my opinion. When analyzing logs from customers or even ourselves, having the extra logged messages easily seen at the bottom of a FlightReview report is very beneficial to getting a quick overview of what happened in the flight.

[dagar]

I'm in favor of logging all these message, but at the same time I want to encourage capturing the relevant data in something structured that could be sent to the ground. Fields in orb and mavlink messages rather than short english text messages.

@Kjkinney CI is failing due to code style. http://ci.px4.io:8080/blue/organizations/jenkins/PX4%2FFirmware/detail/PR-12954/1/pipeline

If you install astyle locally you can run make check_format.

[dagar]

Code style fixed.

[dagar]

Merged to master. Thanks @Kjkinney!