(feat) Adds isMocked flag to detect mocked hooks when running inside jest/vitest libs

[PankajSati-apl]

Changes -

1. SWC Plugin : Adds a Jest/Vitest snippet to detect whether mockreturnvalue || mockimplementation keys exist on the function object
   a. If they do, we can mark the hook as mocked because only testing libraries add these methods
2. Runtime: Added isMocked to the onHookChange callback
   a. The key is only added when it is set to true

Why mockreturnvalue || mockimplementation ?

• These methods are the core of mocking functions in unit tests and have been there for a long time
  Jest Docs: https://jestjs.io/docs/mock-function-api#mockfnmockimplementationfn
  ViTest Docs: https://vitest.dev/api/mock.html#mockreturnvalue

[sidx1024]

Thanks for this PR, overall implementation looks good but there's a few suggestions:

1. I see that the new changes adds check like isMocked: typeof useFieldValues === "function" && ("mockImplementation" in useFieldValues || "mockReturnValue" in useFieldValues) to every hook. In order to keep the generated files smaller, can we instead have h.m(useFieldValues)? I've left an example as a suggestion. The function m should be returned by useJitterScope and it will internally do the same check.

2. Can we update the documentation for these changes?

3. Please add a changeset (minor).