Support detecting what the redstone power is

[osfanbuff63]

I'm planning to use this API in my new datapack (the WS Datapack), and I've had to use predicates for every single power (1-15) and I was wondering if you might be able to integrate that into this library, as it would fit well.

[ICY105]

To clarify, you want to detect the power level provided to the block?

It looks like this can be done for redstone and daylight detectors, but not comparators. That seems problematic since comparators are the primary tool for dealing with power levels.