14.0 pattern import export impr imports

[hparfr]

This PR allows you to do 2 new interesting things:

1) define a primary key with multiple columns and multiple depth 2) define foreign key with multiple columns and multiple depth

TODO:

• [x] tests
• [x] update documentation
• [x] minor refactor and add comments

[hparfr]

/ocabot merge minor

[shopinvader-git-bot]

Hey, thanks for contributing! Proceeding to merge this for you. Prepared branch 14.0-ocabot-merge-pr-120-by-hparfr-bump-minor, awaiting test results.

[shopinvader-git-bot]

@hparfr your merge command was aborted due to failed check(s), which you can inspect on this commit of 14.0-ocabot-merge-pr-120-by-hparfr-bump-minor.

After fixing the problem, you can re-issue a merge command. Please refrain from merging manually as it will most probably make the target branch red.

[hparfr]

/ocabot merge minor

[shopinvader-git-bot]

This PR looks fantastic, let's merge it! Prepared branch 14.0-ocabot-merge-pr-120-by-hparfr-bump-minor, awaiting test results.

[shopinvader-git-bot]

@hparfr your merge command was aborted due to failed check(s), which you can inspect on this commit of 14.0-ocabot-merge-pr-120-by-hparfr-bump-minor.

After fixing the problem, you can re-issue a merge command. Please refrain from merging manually as it will most probably make the target branch red.

[hparfr]

/ocabot merge minor

[shopinvader-git-bot]

Hey, thanks for contributing! Proceeding to merge this for you. Prepared branch 14.0-ocabot-merge-pr-120-by-hparfr-bump-minor, awaiting test results.

[shopinvader-git-bot]

Congratulations, your PR was merged at 63ac1421d851cafbf08625c44cc0b7618fb422c0. Thanks a lot for contributing to shopinvader. ❤️