Provide a tutorial about query creation

[johannesduesing]

A new Delphi user will most likely need help understanding the syntax and semantics of queries. Therefore, a tutorial should be provided that explains everything needed for working with Delphi, guiding the user from their first plain string query up to the usage of Hermes filters. Such a tutorial should contain lots of examples, which could contain a button link that executes them on the live system.