Support StartTraceRetrieval query #344
Description
Is your feature request related to a problem? Please describe.
Xray has released OpenTelemetry Native tracing functionality dubbed as Transaction Search. This new tracing also comes with new APIs to query traces from xray. The new API should be integrated with the xray grafana datasource.
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Transaction-Search.html
OTLP Endpoint: https://docs.aws.amazon.com/xray/latest/devguide/xray-opentelemetry.html
Describe the solution you'd like
API is documented here: https://docs.aws.amazon.com/xray/latest/api/API_StartTraceRetrieval.html
Describe alternatives you've considered
N/A
Additional context
I noticed other tickets related to Cloudwatch application signals: #330, #329