Plugin wrapper for the JS methods required to write and read from a file stored on a device,  (e.g: text file, or log file)

It uses the File Plugin to access the native filesystem and uses the JS method to convert text to file and file to text.

This implementation is based on the article: https://www.raymondcamden.com/2014/11/05/Cordova-Example-Writing-to-a-file