No interface definition to allow options and callback function at the same time

[eunjungoh35]

Missing interface to allow options and callback function at the same time

(
   source: string,
   dest: string,
   options?: Options,
   callback?: (error: Error | null, results?: Array<CopyOperation>) => void,
): WithCopyEvents<{}>;

recursive-copy/index.d.ts

Line 51 in 4c9a8b8

interface CopyFn {