[META] Port Glossary module to Drupal 8

Problem/Motivation

Glossary is in 7.x version we need to port it to D8.

Proposed resolution

Remove D7 files

Make info.yml file for glossary 8.x

Make glossary.settings.yml file

Make glossary.schema.yml file

Make glossary.permissions.yml file

Make glossary.css file

Make glossary.module file

Make glossary.js file

Make glossary.libraries.yml file

Make general settings form

Add more tasks in the form of issues here

Remaining tasks

Make it run in D8 !