Time Constraints input time update

[dankarization]

Description

Now you can only use start_time and end_time as hardcoded variables or with sunset values. I think it will me even more useful to implement any datetime variables there. With this, user can easily change all values for entity controller at the same time through UI just changing 2 datetime variables. Same is useful for night mode times.

Configuration

motion_light_sun:
  sensor: binary_sensor.living_room_motion
  entity: light.table_lamp
  start_time: input_datetime.daylight
  end_time: input_datetime.nightlight

Steps to reproduce

Well, none

Expected behavior

Also none

Actual Behaviour

Still none

Logs

nope

Provide logs at DEBUG level. 

nope

Version

9.5.2