Rule to check indent level of tags

[KyleHorkley]

Is your feature request related to a problem? Please describe.
It would be great to have a feature that allows for checking the indent level of tags to ensure that their nesting is properly shown with the correct indentation (i.e. number of spaces or tabs), configurable to a certain number of spaces or a tab as the indent.

Describe the solution you'd like
For example, incorrect code with this rule may look like:

<ul>
<li> <!-- Not indented from parent -->
    <p>Hello world</p>
</li> <!-- Not indented from parent -->
</ul>

or, in the case of a set number of spaces (e.g. 4):

<ul>
    <li>
         <p>Hello world</p> <!-- Error: 9 spaces, expected 8 -->
   </li> <!-- Error: 3 spaces, expected 4 -->
</ul>

Describe alternatives you've considered
Issues #73 and #153 were closed due to inactivity, but this feature is still relevant and would be incredibly useful to ensure that proper tag nesting is reflected through consistent indentation.

Additional context
N/A