OnScreenKeyboardInstuctionGenerator

[areinard]

This pull request uses Java 8 to create a On Screen keyboard instruction generator. The main package contains a simple app that prompts for file input and returns a list of on screen keyboard commands to the console. This is done by creating a keyboard object assigning coordinate values for each key, calculating start and end character coordinate difference, and appropriate string list.

Junit, hamcrest libraries also committed, for simple test case package. This seemed more appropriate/simple for the purposes of this pull request, as opposed to converting to a full maven project.

I have also included a standalone runnable jar demo, which exists in demo package, with a single osxdemo.txt file. With JRE installed, this can be executed in command line/terminal as java -jar oskdemo.jar.