Add S-CORE architecture diagram in drawio format

[4og]

This PR adds the S-CORE architecture diagram based on the outcome of the https://github.com/orgs/eclipse-score/discussions/652

This PR should also serve as a preparation for the F2F Architecture workshop in April: https://github.com/orgs/eclipse-score/discussions/764

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Extracting Bazel installation...
Starting local Bazel server and connecting to it...
INFO: Invocation ID: 43af7661-5790-46dc-8dd7-162401b2daad
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 0 packages loaded
WARNING: Target pattern parsing failed.
ERROR: Skipping '//:license-check': no such target '//:license-check': target 'license-check' not declared in package '' defined by /home/runner/work/score/score/BUILD
ERROR: no such target '//:license-check': target 'license-check' not declared in package '' defined by /home/runner/work/score/score/BUILD
INFO: Elapsed time: 5.314s
INFO: 0 processes.
ERROR: Build did NOT complete successfully
ERROR: Build failed. Not running target

[github-actions]

The created documentation from the pull request is available at: docu-html