fix(sdk): Get trace context from provider (#211)

## Summary
- Use a provider provided trace_id and span_id if available for
observability first.

## Scope
Get provider specific trace context if available else get current
trace_id and span_id.

## Risk and Rollout
- Risk level: low 
- Rollback plan:

## Testing
- [ x] Added or updated automated tests
- [ x] Ran `make check` (or explained why not)
- [x ] Manually verified behavior

Author: namrataghadi-galileo