* Revert "Remove the deprecated `otel/metric/global` pkg (#3829)"
This reverts commit 60f7d42d1e.
* Revert "Support a global MeterProvider in `go.opentelemetry.io/otel` (#3818)"
This reverts commit 813936187e.
* Remove top level metric global
* Add change to changelog
Comment should be complete sentences outside of lists with sentence
fragments. This adds the godot linter to check these complete sentences
end with punctuation. If they do not, running fix will append a period.
* switch all tests to be on the global package
* move ResetForTest to be available only during tests
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>