Add all of the Site Validation meta tags to 8.x-1.x

This sounds like an excellent idea to me. I've just built a new Drupal 8 site and need to validate it, so I'm looking for solutions currently. This will become more important as Drupal 8 use becomes more widespread.

@DamienMcKenna - We wrote the Site Verification D8 module. I'm happy to continue on the path and write the validation tags for MetaTag 8.x if you'd like?

Jim

I've created a bunch of the most popular verification tags classes under "Site Validation" fieldset. Here's the patch file. I think we can add other tags by an on-demand basis. Now I'm going to add an ability to create verification files for some of the services on-the-fly (I personally prefer this method to meta tags).

I think we can add placeholders to the metatags to show data format (like UA-XXXXXXXX-X for GA for instance). What do you think about it?

I tested #11 and seems like working great, thanks!

I guess it should be

not:

I guess it should be
<meta name="google-site-verification"
not:
<meta property="google-site-verification"

matsbla, you're right, my final code review "cleaned it up". I rerolled the patch, here it is.