Support for arranging drop down of metrics

[planetchili]

Auto-migrated from intel-sandbox/applications.graphics.presentmonservice/issues/432

^{Original creation by JeffersonMontgomery-Intel on 2024-05-22 21:43:02+00:00}

The order of metrics in the drop-down is somehow linked to their enum value. The enum values can't change for backwards-compatibility reasons, but we should be able to customize how the metrics are listed.

e.g., here I'd like "Application FPS" to be next to "Presented FPS" and "Displayed FPS" (if we go by similar metrics, or could be alphabetical or something...)