Mela

Fix missing component type in dependency resolver

Add missing requirement, anyio
Fix bug with subclasses injection in static params
Fix bug in RPC client implementation

Pydantic based app settings
Inject arguments to endpoints based on type annotations (FastAPI-like)
Inject logger or other components

Make it possible to just register endpoints, without running loop (method `Mela.setup()`)

Implemented headers for RPC clients. Check it here: `examples/rpc/client.py`

Fixed issue 6:
It seems that unhandled exceptions which cause the app to quit automatically nack incoming messages
without requeueing them, leading to data loss. This is true of exceptions thrown within both mela
code (e.g. json deserialisation exceptions) as well as within application code. Confirmed in 1.0.5 and 1.0.7
Some logging improvements
Fixed the bug with duplicated anonymous queues for one RPC client.
Added dead letter exchange example and fixed dead letter exchange default routing key to empty string
Added an option to directly configure requeue strategy on broken messages for consumers