Docs(EDC): Administrative Level 1 Endpoint

[nicoprow]

Add requests to EDC Postman collections for creating and using administative areas level 1 assets.

Solves #509

Description

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• Copyright and license header are present on all affected files

[SujitMBRDI]

I have tested endpoint and it is working.
Just we can remove copy from name - 'GET Administrative Level 1 Copy'

[nicoprow]

I have tested endpoint and it is working. Just we can remove copy from name - 'GET Administrative Level 1 Copy'

Removed the ' copy' suffix