Update core HSV color scaling to standard scales:

[emlove]

Description:

Related to #11288

This PR updates the scaling used internally in hass for HSV values. The current scales were pretty much directly catered to the hue platform. This PR introduces some more standardized scales, before we open up HSV as part of the light API.

Hue is scaled 0-360
Sat is scaled 0-100
Val is scaled 0-100

[balloob]

👍

[amelchio]

We should probably cast to integers before passing the values to device APIs. I will check how aiolifx handles floats.

[emlove]

I did test with hue, and it works fine. I don't have any lifx devices, but I can add a cast for those if we want to be extra conservative.

[amelchio]

It seems to also work for LIFX. With aiolifx, the message is packed with bitstring.pack and that truncates the float:

>>> bitstring.pack("uint:16", 1.9)
BitStream('0x0001')