Made DialogResponse a top-level class.
Made DialogOptions, DialogType and DialogResources top-level classes.
Made the DialogTemplate a top-level class.

This commit introduce build errors!
Made the UITextArea a top-level class.

This commit introduce build errors!
Made the FXDialog a top-level class.

This commit introduce build errors!
Made the ExceptionDialog a top-level class.

This commit fixes the previous build errors.
First clean-up of the Dialogs class.
Added javadocs to the Confirm Dialog methods.
Added javadocs to the Information Dialog methods.
Reordered values to be more intuitive.
Added more javadocs.
Simple cleanups.
Simple reorganization to prepare for password dialog.