Refactoring database

[blidhpxc]

Description

Clean up the program code with database referenChange of terms to the official standards of the IDTA.ces and clean up of the database structure. Outsource the program code to a separate project ("AasxServerDB"). Changing the terms to the official standards of the IDTA.

Motivation and Context

Cleaning and simplifying the code that works with the database for easier further development of the database.

Type of change

Please delete options that are not relevant.

How Has This Been Tested?

These changes have been tested by running the application with 100.000 aas on a linux server and ensuring that all functionalities work as expected.

Screenshots (if appropriate):

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works

[CLAassistant]

All committers have signed the CLA.