feat(config): Multiple `searchDir` values are allowed
feat(config): Multiple `searchDir` values are allowed

`searchDir` can now be set to an array of strings. RNSTL will now search all directories using the
`pattern` and writes the matching files to the `outputFile`.Prior behavior still exists.

Closes #14

elderfo/react-native-storybook-loader,elderfo/react-native-storybook-loader