Mono-repo support.

[underblob]

• Disable missing require.
• Add support for mono-repos (@babel/*).

[SimonSimCity]

This implementation will fail when having the package resolve installed and running with the option --strict. The package resolve has an array for test/resolver/invalid_main/package.json where the property main is an array.

Might be a valid approach to include an exclude path here to explicitly skip packages ...