Router

Added Claude provider. Added Router provider. Router acts as your model gateway, you may provide it multiple different clients in order of fallback. Errors which cannot be retried will automatically prompt the loop to choose the next in line. You may also implement sorting strategies of the model, and add metadata to said model. In the examples we show how to make an embeddings based router!

What's Changed

• Feat/claude by @EggerMarc in #27
• Feat/router by @EggerMarc in #28
• feat(providers/router): add stream support to router by @EggerMarc in #29
• Feat/router stream by @EggerMarc in #30

Full Changelog: 0.0.9...0.0.11