Add SEO meta fields on edit-tags.php

[sybrew]

From mjtweaver's request:

Add custom SEO fields underneath the term-creation fields on the left side of the screen (LTR).

[vralle]

For me, this is one of the most confusing properties.

We will be able to get the creation time for the new term. But how do we determine the creation time for existing terms?

The next step will be the need to use the update time. We will have at least two events that we will need to track. This is a change name/description of a term. And adding/updating posts related to term. In my understanding, this is a very long way, the benefits of which are not obvious. Long queries can at best be implemented via Cron, but still it can not be done at low cost and ideally (for example, output of related posts, titles and descriptions of terms - all this can change dynamically using hooks).