feat: Re-export rive_rs

[simbleau]

Problem

Those who pull in rive-bevy shouldn't need to pull in rive-rs. By re-exporting the version of rive-rs, users following the example won't face issues and, for maintainability, the end-user doesn't need to ensure versions match.

Solution

• Re-export rive_rs
• Examples now use rive_bevy::rive_rs:_ instead of rive_rs::_ imports

[dragostis]

Thanks for the PR. Seems like a good idea.

I'll take a look next week.

[simbleau]

Good to go. @dragostis