(draft)deps(experimental): uniffi 0.30.0

[reez]

Description

Testing uniffi 0.30.0

Two changes:

1. export Ord trait so swift and kotlin now treat them as comparable value types
2. (breaking! but potentially awesome) convert HashableOutPoint from an object to a record "Enums and Records can have methods" compiles but exporting our own methods on a record fails in bindgen step

Notes to the reviewers

Changelog notice

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt and cargo clippy before committing

New Features:

• I've added tests for the new feature
• I've added docs for the new feature

Bugfixes:

• This pull request breaks the existing API
• I've added tests to reproduce the issue which are now passing
• I'm linking the issue being fixed by this PR

[reez]

@thunderbiscuit + @ItoroD this is just a draft/experiment on 2 new things in uniffi 0.30.0