Merge pull request #9 from mavlink/streams-fail-fast

Improve stream error handling, code generation and mavsdk proto update to 20aa335 - MAVSDK 3.6.0.

updated sources to mavsdk-proto 34bce6d (#8)

* updated sources to mavsdk-proto 34bce6d

* updated subscriber functions to allow listening on context for easy cancellation

* checking for context cancaled error from grpc streams

* rely on grpc context handling and parse ctx cancled error

* fixing linting

generated updated proto files

cleanup of sources

missing context in function paramters

sync with mavsdk protos