ADD-ON - feat: organization hierarchies

[skoch-intershop]

PR Checklist

[ ] The commit message follows our guidelines: https://github.com/intershop/intershop-pwa/blob/develop/CONTRIBUTING.md
[x] Tests for the changes have been added (for bug fixes / features)
[x] Docs have been added / updated (for bug fixes / features)
[ ] Visual changes have been approved by VD / IAD (if applicable)

PR Type

[ ] Bugfix
[x ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no API changes)
[ ] Build-related changes
[ ] CI-related changes
[ ] Documentation content changes
[ ] Application / infrastructure changes
[ ] Other:

What Is the New Behavior?

This PR adds the functionality to manage the company structure. This structure can be linked to baskets and orders by introducing the buying context. The availability of this feature is guaranteed via a managed service in the ICM. If the managed service is not available, the associated PWA components are not loaded.

Functionality:

1. manage company structure:
   
2. selection of the buying context:
   
3. displaying of the buying context path on order and basket:
   
   
4. display of group name on order list:
   

Issue Number: 92230

Does this PR Introduce a Breaking Change?

[ ] Yes
[n ] No

Other Information

1. ICM adaptions are necessary for this feature (extention of the whitelist for the configuration REST request)
2. implementation is done without IAD
3. ohs demo environment has to deployed for testing purpose of this PWA feature

AB#95732