Support for AWS X-Ray Remote Sampling

[jj22ee]

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What problem do you want to solve?

OTel Python current does not support centralized/remote sampling from AWS X-Ray.

Describe the solution you'd like

OTel Python to support X-Ray Remote Sampling, similarly to the .NET and Java support for X-Ray Sampling. Also see "xray" sampler in the specification here.

Describe alternatives you've considered

No response

Additional Context

I have an implementation that was used internally in aws's ADOT instrumentation for about a year now, so I want to copy over the implementation to here as its own package in OTel Python.

I can be a code-owner/maintainer for this Sampler.

Would you like to implement a fix?

Yes