standardize handling of flags, env vars, and annotations

[zackbradys]

Please check below, if the PR fulfills these requirements:

• Commit(s) and code follow the repositories guidelines.
• Test(s) have been added or updated to support these change(s).
• Doc(s) have been added or updated to support these change(s).

Associated Links:

• N/A

Types of Changes:

• Feature

Proposed Changes:

• Added hauler.dev/store annotation so manifests for images, charts, and files can route its own content to a different store than --store
  • Fixes... [feature] Allow specification of target sync store in manifest file #392
• Added hauler.dev/retries annotation so manifests can override the number of retries
  • Added the HAULER_RETRIES env var for --retries
• Centralized --tempdir/HAULER_TEMP_DIR resolution into StoreRootOpts.Store()
  • Replaces the three separate copies of the same fallback logic
• Removed hauler.dev/rewrite, a annotation in manifests constant that was defined but intentionally never implemented based on the original PR for rewrites
• Updated the env var listings in --help and verbose audit logging to include the vars above

Verification/Testing of Changes:

• N/A

Additional Context:

• N/A

[amartin120]

Removed hauler.dev/rewrite, a annotation in manifests constant that was defined but intentionally never implemented based on the original PR for rewrites.

Huh? I thought this was a thing. @CamrynCarter? Am I going crazy again or am I just not reading this correctly?

[zackbradys]

Removed hauler.dev/rewrite, a annotation in manifests constant that was defined but intentionally never implemented based on the original PR for rewrites.

Huh? I thought this was a thing. @CamrynCarter? Am I going crazy again or am I just not reading this correctly?

rewrite does work per artifact in the manifests, but from what I remember, it was intentional for it not to work globally in the manifest and there was no calls to it when searching the code base.

[amartin120]

@zackbradys Ohhhh. Okay, that makes sense. Thanks.

[amartin120]

LGTM