otelconf: add unmarshalers for otlp exporters#8112

MrAlias merged 5 commits into

open-telemetry:mainopen-telemetry/opentelemetry-go-contrib:mainfrom

codeboten:codeboten/otelconf-unmarshal-exporterscodeboten/opentelemetry-go-contrib:codeboten/otelconf-unmarshal-exportersCopy head branch name to clipboard