Add support for SquirelSql

As a IDEasy user, I want to be able to use my favourite sql-client SquirelSQL so that I have a generic SQL client for arbitrary DBs.

https://squirrel-sql.sourceforge.io/
Can easily be integrated as local commandlet.
For URL Updater see:
https://github.com/squirrel-sql-client/squirrel-sql-stable-releases/releases
