fix: apply nullable to RefProperty (#33)

* fix: apply nullable to RefProperty

* chore: bump version

Merge pull request #23 from dylibso/fix-int64-normalization

Fix int64 normalization

Merge pull request #22 from dylibso/normalizer-errors

feat: add more error checks in the normalizer

Merge pull request #20 from dylibso/type-format-properties

feat: make sure users can define exports/imports/schemas/properties named `format`/`type`

Merge pull request #19 from dylibso/untyped-object

Handle back-compat untyped object

Merge pull request #18 from dylibso/refactor-bindgen

Refactor Bindgen to simpler form

Merge pull request #16 from dylibso/codeowners

Add codeowners file

Merge pull request #13 from dylibso/schema-type

fix: make sure we always set the type on the schemas

Merge pull request #12 from dylibso/update-version-rc9

update version to rc.9

Merge pull request #9 from dylibso/remove-simple-export-in-v1

fix: remove simple export in v1 schema