Support closingBracketNewLine setting with experimental formatter

[JessicaJHee]

trafficstars

Fixes #1247

Signed-off-by: Jessica He [email protected]

[angelozerr]

@JessicaJHee when you will fix tests, could you create a PR on vscode-xml too to say that this settings is now supported

[angelozerr]

Your pr looks very good. I think it should be nice to have a test with this xml

<\root>

I wonder if it will respect the indentation done before a element

[angelozerr]

It works like a charm, great job @JessicaJHee !