Definition of entity time spacing and legend time spacing

[FragMenthor]

Some weather entities provide weather not in hour-by-hour, but sometimes 2-2h, 4-4h, etc..
Example:

This could be solved with 2 more options:

• entity_time_spacing: would define the time (h) between previsions of the weather entity
• legend_time_spacing: (h) would define the legend that actually shows underneath to be only from x (h) in x (h). This could allow to have a bar that covers more hours, but keeping the legend readable.

Thanks for you work, and sorry to trying to put you to more of it, but if it improves and serves more options it would be wonderful! 🙏

[decompil3d]

I think it'll be better to just make the card understand the actual time spacing between the forecast entries. That way, num_hours will be accurate. This is on my todo list when I have time to invest in this card. Or someone can feel free to contribute a PR.