The NPM distribution package is incomplete

When I install this library from NPM, the podspec required for integration is missing.

For now I can use the repo as source, but it would be nice if the podspec would just be included in the NPM distribution.

Also, the `Example/ios/build` **is** included in the distribution, which shouldn't, because it adds almost **150 megabytes**. I think actually that the whole `Example` directory should be excluded from the release.

Oh and also the typescript definitions are not included.

To download the archive from npm you can use the following url and see for yourself: https://registry.npmjs.org/react-native-haptic/-/react-native-haptic-1.0.5.tgz