Add package.json with aasvg

[thgoebel]

As suggested in martinthomson/i-d-template#385 (comment), there should be a package.json. Then running make will automatically install aasvg (assuming that npm is installed, which I am documenting in martinthomson/i-d-template#419).

Without this (and without aasvg installed otherwise), running make will throw an error:

/usr/lib/ruby/3.1.0/open3.rb:222:in `spawn': No such file or directory - aasvg (Errno::ENOENT)
        from /usr/lib/ruby/3.1.0/open3.rb:222:in `popen_run'
        from /usr/lib/ruby/3.1.0/open3.rb:103:in `popen3'
        from /usr/lib/ruby/3.1.0/open3.rb:290:in `capture3'
        from /draft-ietf-scitt-architecture/lib/.gems/ruby/3.1.0/gems/kramdown-rfc2629-1.7.4/lib/kramdown-rfc2629.rb:557:in `svg_tool_process'
        from /draft-ietf-scitt-architecture/lib/.gems/ruby/3.1.0/gems/kramdown-rfc2629-1.7.4/lib/kramdown-rfc2629.rb:506:in `call'
[...]

[aj-stein-nist]

Thanks for the contribution. I actually completed the supporting work, with package.json and other requirements, and it works partly. The SVG can be output by the CLI but Mermaid itself makes not-so-standard SVG files and fails tests later in the pipeline. That's why I voluntarily closed #134. More details there.

In the coming weeks I am more than happy to work with you on determining how hard it is to make upstream fixes to Mermaid but it won't be trivial.

EDIT: People wisely told me I am being silly and this is a very different issue and I conflated two. That's very correct! Easy to test and review PR, apologies, @thgoebel.

[OR13]

I cloned fresh, and ran make, and I see several errors on the main branch... including this one.

cat draft-ietf-scitt-architecture.md  | kramdown-rfc --v3 | lib/trace.sh draft-ietf-scitt-architecture.xml -s venue /.../draft-ietf-scitt-architecture/lib/.venv/bin/python lib/add-note.py | lib/trace.sh draft-ietf-scitt-architecture.xml -s v2v3 /.../draft-ietf-scitt-architecture/lib/.venv/bin/xml2rfc -q --rfc-base-url https://www.rfc-editor.org/rfc/ --id-base-url https://datatracker.ietf.org/doc/html/ --cache=/.../.cache/xml2rfc --v2v3 /dev/stdin -o /dev/stdout >draft-ietf-scitt-architecture.xml
---
- No link definition for link ID '@rfc2046' found on line 1098
- No link definition for link ID '@iana.mediatypes' found on line 1099
- No link definition for link ID '@rfc6838' found on line 1100
- No link definition for link ID '[ this specification ]' found on line 1109
- No link definition for link ID ' this specification ' found on line 1109
- No link definition for link ID '[ this specification ]' found on line 1111
- No link definition for link ID ' this specification ' found on line 1111
/opt/homebrew/Cellar/ruby/3.2.2/lib/ruby/3.2.0/open3.rb:222:in `spawn': No such file or directory - aasvg (Errno::ENOENT)
	from /opt/homebrew/Cellar/ruby/3.2.2/lib/ruby/3.2.0/open3.rb:222:in `popen_run'
	from /opt/homebrew/Cellar/ruby/3.2.2/lib/ruby/3.2.0/open3.rb:103:in `popen3'
	from /opt/homebrew/Cellar/ruby/3.2.2/lib/ruby/3.2.0/open3.rb:290:in `capture3'

This PR should be merged, and the other errors should be addressed before other PRs are accepted.

[aj-stein-nist]

Yeah I am confused as when working on previous PRs, I only knew things were not working because I got errors from SVGs rendered from aasvg but I am confused what the deal was, but I must not have been paying too close attention. Thanks, @OR13.

[SteveLasker]

The majority of other drafts I viewed didn't include package.json, which does require additional setup for the user.
This is an annoyance, and with Martin's comment, anything that can make the creation and testing of the specs prior to making a PR, the better.

[SteveLasker]

LGTM