Fixes to handle Events and Labels.

[slothdnk]

PR Description

Make Label's work
Make Events register with correct path.
Show Label in debug when adding devices.

PR Type

• [ X] Bug fix (a change that fixes an issue)
• New feature (a change that adds new functionality)
• Breaking change (a change that affects other repos or cause CIs to fail)

PR Checklist

• [X ] I have conducted a self-review of my own code changes
• I have commented new code, particulary complex or unclear areas
• [X ] I have checked that I did not intoduced new warnings or errors (CI output)
• [X ] I have checked that components that use libiio did not get broken
• [ X] I have updated the documentation accordingly (GitHub Pages, READMEs, etc)

[pcercuei]

You'll have to write better commit descriptions, that explain what each commit is fixing (or modifying) and why the change is needed; and also sign-off your commits (with git commit -s, or manually adding a Signed-off-by: line at the end of your commit description, see the git log for examples).

Since nothing is explained, I don't know what you're trying to fix with the "Make events register with correct path" commit. It looks wrong to me.