Maskable Input : allow regex

[ZARk-be]

Is your feature request related to a problem? Please describe.
Creating a custom Maskable input by extending BaseMaskable is really cool.
But it would be great if we could define our own regex instead of using the InputMask

Describe the solution you'd like
We could have a getInputRegex() method that will return directly the regex string, bypassing the mask.

Describe alternatives you've considered
Well i'll just run realtime validation with ->validateOnly() in my livewire

Additional context
I needed a form input to input an ipv4, the input mask ###.###.###.### is wrong because it forces you to pad with 0, which isn't very nice to look at.
Also it means you could offload the mask generation to php and have your TS component just apply the given regex.