Hard keyboard Caps Lock key remapped to Control, or general in-app key remapping

Requesting the ability to remap Caps Lock to Control while in-app. Currently, the iPad OS doesn’t support any sort of key remapping, but there are a few apps in the store that allow for this substitution within their own apps. This is specifically for external iPad keyboards.

Maybe some other developers have key remapping needs similar to this one?  This could be part of a bigger feature.