Index Fragments in the same way as parts

Fragments doesn’t get indexed in the same way as Parts/TextComponent/LayoutComponent

Would be usefull to perform queries like this: = "my-fragment"
to programaticly find out where a fragment is used.

Just as you can with Parts using: = "content-video"

@rmy as mentioned on Slack

Edward; I have created an issue to look into this, but it didnt make it for the 6.14 release.