Support Authenticated Buckets/Orgs

[bstopp]

Description

Add checks for access to creating buckets, and when creating a new bucket set the access to the authenticated user.

Related Issue

Impl #41

Motivation and Context

So all new buckets are secure going forward.

How Has This Been Tested?

Added unit tests. Also ran some quick Postman checks locally.

Screenshots (if appropriate):

Types of changes

• 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 change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[bstopp]

Note: i didn't remove any of the "auto-bucket creation" logic already in saving Objects. However it should be noted that only works in R2, so we'd eventually need another solution if expanding beyond that single storage medium.

(This is also really only used in the new project creation - and I plan to provide an update to that flow soon)

[codecov]

Codecov Report

Attention: Patch coverage is 99.25926% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 79.06%. Comparing base (725b972) to head (d2495a2).

Files	Patch %	Lines
src/utils/auth.js	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #42      +/-   ##
==========================================
- Coverage   79.56%   79.06%   -0.50%     
==========================================
  Files          14       18       +4     
  Lines         915     1094     +179     
==========================================
+ Hits          728      865     +137     
- Misses        187      229      +42     

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