[Feature Request] Add support for multiple remote entity

[SiwatS]

Currently, only one remote entity is allowed per smartir entity. I currently own a room with a lot of AC units in it and I would like to control it as one climate entity. because of their speaded-out arrangement, multiple IR blaster will be needed to make sure that the IR pulse reach all of the units, but currently, smartir does not support such configuration.

[syl20-30]

+1 !!!

[Cervoz]

A really interesting feature!

I'd like to be able to manage air-conditioning by floor, but for the moment I can't find an alternative solution.