Improve Glossary integration
The Glossary implementation used to be more suffisticated in swt. Some
features could not yet be reimplemented, since the fx integration does
not yet support it.
This includes:
- Highlight Glossary terms when they are used in text fields as requirements, comments etc.
- Add possibilitiy to right-click on words in text fields as requirements, comments, etc to add them to the glossary.
- Autocompletion for glossary entries in text fields
(from redmine: issue id 3957, created on 2020-03-20)