Add command "Minify XML"

[MiguelRipoll23]

It would be nice if we could minify XML files using this extension.
Use cases: send large unformatted files to a messaging queue server

Thank you!

[angelozerr]

Indeed it should be nice, but I fear it's not in our priority for the moment.

[MiguelRipoll23]

I completely understand, I appreciate your work for the community.

[angelozerr]

I reopen it because perhaps other people could be interested with this feature.

If we see that this feature interest several people we could work on it.