Check Theme Text domain

[grappler]

fixes #35

With WordPress/WordPress-Coding-Standards#685 multiple text domains are supported and with WordPress/WordPress-Coding-Standards#807 we can easily pass the text domains via the cli.

phpcs -p . --standard=WordPress-Theme --runtime-set text_domain my-slug,default

Or via a custom ruleset.

<rule ref="WordPress.WP.I18n">
   <properties>
     <property name="text_domain" value="my-slug,default"/>
   </properties>
</rule>

We can then add the list of allowed framework text domains to the the Theme Check plugin.

[jrfnl]

Rule is already includes in the ruleset on line 32. Suggest close.

[grappler]

🤦‍♂️