Add ability to add target value and current value about flex-horseshoe-card HOT 1 OPEN

I'm going to pile onto this with an example. I have an automation that turns on my ceiling fan when the temperature in the room gets above x degrees and turns it off when it gets back down below y degrees. Right now I have the values showing up as additional components on the card, clicking on them brings up the normal screen where they can be configured. It would be nice if tick marks were available using those other values, or if the values that had been set could be used for color stops so that when the temperature is below the turn off state, the color is blue, when it's between the turn off and turn on temperatures, the color is green, and when it's above the turn on temperature, it's red. Something like that.

from flex-horseshoe-card.