* updating proto generation
switching over to using opentelemetry-proto's own mechanism for generating protobuf interfaces, and
updating interfaces to latest version
* downgrade protobuf interfaces to 0.14.0
this is the latest version that seems to work with out grpc exporter, further
investigation required for 0.15.0+
* tidy up script
* renaming InstrumentationLibrary to InstrumentationScope and bumping protobuf
InstrumentationLibrary is now deprecated in favour of InstrumentationScope. Making this change
resolves issues with grpc+protobuf exports being ignored by the otel collector, so we now
can update the proto interfaces to latest.
* rename collector docker-compose file