Add implementation for context propagation based on changed in OpenTelemetry 0.9.0.

[pujagani]

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Description

The changes add the required implementation for a propagating the tracing context correctly.

Motivation and Context

The version bump to 0.9.0 for OpenTelemertry made a breaking change of returning no-op TextMapPropagator. As a result, the trace context was not being passed when "inject" operation was called. So in a full distributed grid mode, a request had a different trace id and context as it made its way through different Grid 4 components instead of the same trace id. Thus, defeating the purpose of tracing.
The changes fix the above-mentioned issue by passing a valid implementation of TextMapPropagator. The changes add a unit test to safe-guard from future breaking changes in OpenTelemetry.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.