[managed-resources]: add error and partial error types

[saehejkang]

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation update

Motivation and Context

• Definition of the ManagedResourceError type for ManagedResources.
• Definition of ManagedResourcePartialError type for compound operations.

Testing

• Tested locally
• Added/updated tests
• Added/updated docs

[jglogan]

@saehejkang If you created your branch from jglogan:system-labels you target your branch to merge to it as well?

Then all my changes won't show up in your pull request. I believe that when that PR gets merged, this one will change to merge to main.

[saehejkang]

If you created your branch from jglogan:system-labels you target your branch to merge to it as well?

Do I have to open the PR in your forked repo for that to work? I was planning on waiting until the jglogan:system-labels feature branch is merged to main, until I rebase this one. Just marked it as a draft for now, until it is ready for review (when the diff is fixed).

[jglogan]

Ah yeah, I hadn't considered forks. Your plan makes sense.

[saehejkang]

Each resource type (volume, image, etc.) will define there own error codes