feat: add tree-splicer-openscad

[fenollp]

Also fix a panic on the CLI clap parser.

[langston-barrett]

Thanks for the contribution!

[langston-barrett]

LGTM after this one change!

[langston-barrett]

Thanks @fenollp!

[fenollp]

FYI I'm having troubles publishing that crate, due to version mismatches. It's actually not clear to me what's wrong here:

  1s tree-splicer-openscad openscad 🔗 cargo publish
    Updating crates.io index
   Packaging tree-splicer-openscad v0.7.1 (/Users/pierre/wefwefwef/tree-splicer.git/crates/tree-splicer-openscad)
    Updating crates.io index
error: failed to prepare local package for uploading

Caused by:
  failed to select a version for `tree-sitter`.
      ... required by package `tree-splicer v0.7.0`
      ... which satisfies dependency `tree-splicer = "^0.7.0"` of package `tree-splicer-openscad v0.7.1 (/Users/pierre/wefwefwef/tree-splicer.git/crates/tree-splicer-openscad)`
  versions that meet the requirements `^0.25` are: 0.25.10, 0.25.9, 0.25.8, 0.25.7, 0.25.6, 0.25.5, 0.25.4, 0.25.3, 0.25.2, 0.25.1, 0.25.0

  package `tree-sitter` links to the native library `tree-sitter`, but it conflicts with a previous package which links to `tree-sitter` as well:
  package `tree-sitter v0.26.3`
      ... which satisfies dependency `tree-sitter = ">=0.25"` (locked to 0.26.3) of package `tree-sitter-edit v0.4.0`
      ... which satisfies dependency `tree-sitter-edit = "^0.4"` (locked to 0.4.0) of package `tree-splicer v0.7.0`
      ... which satisfies dependency `tree-splicer = "^0.7.0"` of package `tree-splicer-openscad v0.7.1 (/Users/pierre/wefwefwef/tree-splicer.git/crates/tree-splicer-openscad)`
  Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "tree-sitter"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.

  failed to select a version for `tree-sitter` which could resolve this conflict

[langston-barrett]

Oh, I would appreciate if you would not publish that crate. If we're going to have it in this repo, it should be published by this repo's CI. Do you need it to be available on crates.io in the short term? If so, I can cut a release.

[fenollp]

it should be published by this repo's CI
That's alright by me. I'm not sure how to do any of that so I just added you as an owner to https://crates.io/crates/tree-splicer-openscad

[langston-barrett]

Thank you! It'll get uploaded to crates.io as part of the release process.