Adds a category of Resources of type `head` which will be used to track
the tags that go into the <head>
Currently only implements for `<title>`.
titles are keyed off their textContent so each time the title changes a
new resource will be created. Currently insertion is done by prepending
in the <head>. The argument here is that the newest title should "win"
if there are multiple rendered. This also helps when a navigation or
update causes a server rendered title to hang around but it is not the
most recent one.
Josh StoryandGitHub
1f7a2f577b