feat(baidu-push): add plugin (#2838)
feat(baidu-push): add plugin (#2838)

* Initial push.

* Revert tslint.json and switch imports around to be alphabetical.

* Remove non-used plugins to decrease build time.

* Finish the BaiduPush interface.

* Add observables.

* Restore other plugins.

* Restore file formatting.

* Update documentation.

* Update index.ts

driftyco/ionic-native,driftyco/ionic-native,driftyco/ionic-native