Determine options for MetricServiceConnection when created by MakeMonitoringExporter

Passing along all the `options` results in a misconfigured MetricServiceConnection. However, there may be some `Option` types that should be copied or extracted into an `Options` specific to MetricServiceConnection.

Locate MakeMonitoringExporter and MetricServiceConnection, then trace how options are forwarded and inspect the available Option types. The issue names no files or tests; done means identifying which options are valid for MetricServiceConnection and defining how the invalid options are excluded or extracted.

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