Registered LutamlXsdPreprocessor in Asciidoctor::Extensions

[suleman-uzair]

Metanorma PR checklist

• Breaking changes (list related PRs)
• Documentation update required (create task for this)
• External dependency introduced (documentation update need)
• Gem with native library introduced

This PR updates the Asciidoctor::Extensions register with LutamlXsdPreprocessor.

related to metanorma/metanorma-plugin-lutaml#177

[opoudjis]

@suleman-uzair Update please on this PR

[suleman-uzair]

@suleman-uzair Update please on this PR

@opoudjis, I'm working on the comments by @ronaldtse, I will let you know as soon as its finalized.

[opoudjis]

@suleman-uzair Update please

[suleman-uzair]

@suleman-uzair Update please

@opoudjis I’m reviewing the implementation. There are multiple PRs for this, so I’ll let you know once I’ve completed my review.

[ronaldtse]

@opoudjis Just a warning that this merge may break things because there are things in flux on the lutaml side. If it works, great. If it doesn't, comment out this line. Thanks.

PS that's why it's bad to link the code inside here, because there is no gating on whether this extension should be loaded.

[ronaldtse]

@opoudjis @suleman-uzair we will need to revert this. I need to test the rest of the chain and there are some updates to make. We cannot let this block release.

[ronaldtse]

@opoudjis there is a reason why I did not approve this PR or tell you to merge this.