Improve Parameter Metadata display in QGC

[junwoo091400]

Describe problem solved by this pull request

Currently the Parameter metadata are badly formatted in QGC, which makes the QGC user experience unpleasant. The goal is to have a beautiful / clearly formatted description for parameters that is separated with new-line characters as documented in the source code itself.

The QGC Issue that describes related issues: mavlink/qgroundcontrol#10382

Describe your solution

Change the Parameter metadata parser script to parse the description part properly by not removing the newline characters, so that QGC would display exactly the same line endings.

For this, I am planning to incorporate parser as following:

1. Consider two consecutive lines without empty line (as a comment) in between separated by a 'space'
2. Consider the empty line between the paragraph for the 'long description' as a valid newline

[bkueng]

Good intent, but I don't think it's worth changing the old parser as we move to yaml. There we already have better formatting options.

[junwoo091400]

Good intent, but I don't think it's worth changing the old parser as we move to yaml. There we already have better formatting options.

Yep good point, the YAML options sounds way better! I will then continue in a better YAML PR.

1. By the way where are those formatting stuff documented? Maybe then I can start porting the .c parameter files to .yaml for ones with long descriptions
2. Can I have both .c parameter & .yaml at the same time? (Out of curiosity)

[bkueng]

@coderkalyan almost finished all of the transition in #19489