feat: aio app pack command

[shazron]

(this is based on the WIP PoC for the aio app package command)

• depends on feat: add --json flag to get command aio-cli-plugin-api-mesh#61 (worked around, for now)
  • the PR has been merged, but not released in a new plugin release

How Has This Been Tested?

• npm test

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.

[moritzraho]

lgtm, great mocks

[purplecabbage]

Looks good, I left a couple nits.
We may need to move around the pre-pack/post-pack hook timing.
Also, should we skip cleaning up the output dir? While we are developing/integrating it might be good to have this easily inspectable. We do a similar thing with zipped actions where we do not discard the files so developers can easily see what is going in the zip.

[shazron]

Looks good, I left a couple nits. We may need to move around the pre-pack/post-pack hook timing.

@purplecabbage Is this a change we need in this PR? What changes are needed?

Also, should we skip cleaning up the output dir? While we are developing/integrating it might be good to have this easily inspectable. We do a similar thing with zipped actions where we do not discard the files so developers can easily see what is going in the zip.

We don't clean it up after the command is done - we only clean up at the start of the command

[shazron]

I'll merge this first thing tomorrow and do more testing, which will include #662