Add update, delete, and get auction endpoints

[ltan02]

Description

Created endpoints for updating, deleting, and fetching a single auction.

Fixes # (ticket #)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• 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
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[kevinrczhang]

lgtm, will have to create a task that adds user-authorization so that only certain types of users can access these endpoints.