Add Speech to PADScript

[sovr610]

might need something outside of .NET Core, for windows this will be integrated first, but will develop another program that works with PADScript to allow speech on other operating systems.

[sovr610]

as seen in the commit, I added speech to only Microsoft windows users. You need to have .NET Framework 4.5+ to use the speak(string say) in the scripting language. Still continuing work on this.