Research Explain Analyzer rewrite work

Explain Analyzer is a tool that used to be hosted on the mariadb.org site. It is a web form that helped read the explain output for you.

phpMyAdmin were linking to this page but it has been down for several months as it is in an unmaintainable state.

The original source was written by bryan in Python 2 and I am informed that it is proprietary and we cannot open source it for people such as phpMyAdmin.

Instead we need to work out a plan for rewriting it, deciding what form that will be in (library? full application?) and how much effort it will be to do so. Using a GPL license.