Fix skipped adaptation of intercepted turn-on with attributes

[protyposis]

This PR contains two refactorings and a fix for #1381. The fix improves #1380 to cover another use case.

#1356 has broken two use cases when turning on a light from off state, leading to missing adaptation:

• brightness and/or color adaptation disabled via switches, w/ and w/o attributes: fixed by Fix regression: lights not adapting when turned on by automation #1380
• full adaptation enabled, w/ attribute(s): fixed here

[protyposis]

Not a fix - I misunderstood what adapt_only_on_bare_turn_on is supposed to do.

[basnijholt]

I recently modified the README slightly because even I had forgotten its precise purpose 😅

I think it is clearer now:

When turning lights on initially. If set to true, AL adapts only if light.turn_on is invoked without specifying color or brightness. ❌🌈 This e.g., prevents adaptation when activating a scene and marks the light as manually controlled. If false, AL adapts regardless of the presence of color or brightness in the initial service_data. Needs take_over_control enabled. 🕵️