Why we create this PR?

The Arc42 was outdated and requires a new structure of archives. Also several diagram are outdated and need to be fixed.

A Data retrieval guide needs to be provided to explain in detail how the DPP returns information.

What we want to achieve with this PR?

We want to update the Arc42 with the Authentication, new Workflow and create a new Data Retrieval Guide

New Data Retrieval Guide added with detailed information how to retrieve data in Catena-X like the DPP.
Added new structure of files for the Arc42
Added new Authentication & Authorization chapter in the Arc42
Added detailed description next to the API diagrams at the Arc42
Added IRS Integration documentation at the Arc42
Added diagrams in xml form for further edition

Updated
Updated the Install.md file with a section to install the prerequisites and configure values.yaml files
Updated the file structure from the Arc42
Updated data retrieval api diagrams with better quality
Updated context diagram with a new easy context
Updated Arc42 Descriptions in the Technical Integration chapter