feat: Add scripts for sections and section items with user credentials

[yehee]

Description

Add scripts for sections and section items with user credentials:

• create_section_user_cred.py
• delete_section_user_cred.py
• update_section_user_cred.py
• position_section_user_cred.py
• list_sections_user_cred.py
• list_section_items_user_cred.py
• move_section_items_user_cred.py

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have performed a peer-reviewed with team member(s)
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules