Threads, Images, UI, and Misc Updates

• New: New methods in the MiscUtilities class to get the size of lists / maps via a safe null check.
• New: New methods in the ImageUtilities and FileUtilities classes to be used in conjunction with downloading images from the internet and converting them to a byte array. Also added image rotation methods for simple animation changes.
• New: New methods in the NetworkingUtilities class that allows a really simple builder of an OkHttp3 Client for use in various web-related calls or in the above Image Downloading logic.
• New: New method in the TextField Utilities class to allow for setting a TextView to have copy / paste functionality (IE, to be able to select and copy from it)
• New: New class, AppThreadPool. This class is designed to perform operations on either background or foreground threads depending on the end goal. All items from the ThreadUtilities have been moved to this new class as well.