add versioning script
add versioning script

ceisinger/cordova-plugin-firebase,ceisinger/cordova-plugin-firebase,DigitalsunrayMedia/cordova-plugin-firebase,arnesson/cordova-plugin-firebase,ceisinger/cordova-plugin-firebase,DigitalsunrayMedia/cordova-plugin-firebase,arnesson/cordova-plugin-firebase,arnesson/cordova-plugin-firebase,ceisinger/cordova-plugin-firebase,arnesson/cordova-plugin-firebase,DigitalsunrayMedia/cordova-plugin-firebase