More functions for working with modifiers

[lolbinarycat]

Currently, if you don't want to do any masking yourself, there's only one function that you can use (that I know of), and that's keybind.ModifierString. This functions does several things you might not want:

• It returns the modifiers connected with -
• It returns the modifiers as strings, which isn't very efficient

Now, this isn't to say it's a bad function, but rather that it isn't sufficient as the only function.