Default to enabled observability #54
Merged
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Motivation
Swift Log/Swift Metrics integration should be enabled by default. And the operator can always pass in a no-op log/metrics backend if they want to discard it.
This is important when Configuration is used as a transitive dependency, as there the operator wouldn't have a way to enable observability from this library unless the direct dependency that pulled in Configuration was cooperative.
Modifications
Enabled logging/metrics by default by changing the default parameter values in the reloading providers.
Result
Logs/metrics emitted for reloading providers by default.
Test Plan
Adapted tests.