Avoid to append ./ automatically

[0cv]

Currently, due to ./ being appended automatically to any file, it's not possible to resolve node_modules for example.

Will solve #31

Could break other projects which are not appending ./ for resolving local files.

[TheLarkInn]

See #31 (comment)

This needs to be approached in a creative manner that still stands true to the intentional design of the loader.

[0cv]

eventually it should check whether the file exists in the current path, and if not resolve the node_modules... But it's error prone if 2 files / modules come with the same name.