add IndieWebPost plugin as a submodule

[grantcodes]

Let me know if this works for you :) or if you don't want to have it as a submodule

[aaronpk]

Thanks! One thing I noticed is the extension includes the mf2 parser. That's going to conflict since the wiki already brings in the mf2 parser separately. Is there a way to declare requirements in the extension so that it can use the existing mf2 parser?

[grantcodes]

I'm sure it must be possible somehow.

I originally tried with composer but it was throwing errors.

If it's available as a global variable I could just check if that exists first before requiring it? Is there somewhere where I can see how it is included?