Indentation checking

[OwlyCode]

We should create a new rule about indentation checking. The official ruleset states:

Indent your code inside tags (use the same indentation as the one used for the target language of the rendered template)

But I also noticed a lot of people prefer to do:

<ul>
{% for a in 1..2 %}
    <li>{{ a }}</li>
{% endfor %}
</ul>

So the final html is indented as if there were no twig.

My take on this would be to create a rule that defaults to the official coding standard but has an option to tolerate that twig tags directly inside html code can "skip" one indentation level.

[oallain]

Good thing, it's really nice idea 👍