Generate SQL table creation script for Aspect Models

[atextor]

Description

This PR adds functionality to create SQL table creation scripts for Aspect
Models. It adds corresponding functionality in the Java API, samm-cli and the
Maven plugin as well as complete user documentation.

Fixes #584

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works

[Yauhenikapl]

LGTM!

[github-actions]

Release v2.8.0 addresses this.