Add node modules and new code for release (#57)

Co-authored-by: taakleton <taakleton@users.noreply.github.com>

node_modules/escalade/index.d.ts

@@ -0,0 +1,3 @@
+type Promisable<T> = T | Promise<T>;
+export type Callback = (directory: string, files: string[]) => Promisable<string | false | void>;
+export default function (directory: string, callback: Callback): Promise<string | void>;