Add `DISABLE_MODULE_SCOPE_PLUGIN` option

Created by: ryota-murakami

By default, CRA doesn't allow import file outside the /src showing bellow error overlay if you do it.

It mainly gives TypeScript users an inconvenient experience as far as I can see this issue https://github.com/facebook/create-react-app/issues/8785 and including me.

So I implemented simple way that following other dynamic webpack config creatation.

If I missing something or need extra modify please feedback freely, I'll appreciate it.

requested review from @root

requested review from @root

requested review from @root

requested review from @root

added CLA Signed label

mentioned in issue #8785

Created by: stale[bot]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

added stale label

Created by: ryota-murakami

@ianschmitz @mrmckeb @petetnt @iansu Could anyone review this? or just busy right now?

removed stale label

mentioned in issue #11180 (closed)

Created by: stale[bot]

This pull request has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

added stale label

restored source branch github/fork/ryota-murakami/feat/disableModuleScopePlugin