GitHub Action to create a release containing the image artifacts

[boldandbrad]

GIVEN changes have been made and tested in a feature branch
WHEN that feature branch is merged to main
THEN automatically create a Tag and GitHub release corresponding to the package.json version number or latest changelog version, containing a zip of output image artifacts from the image/ directory.

Assumptions:

• No pushing directly to main from local

Nice to haves:

• Automatically build a number of common images sizes in a build step