Add IR Remote Climate support for Dometic FreshJet 3000

**Describe the problem you have/What new integration you would like**

It would be great if Dometic FreshJet was integrated in IR Remote Climate.

**Please describe your use case for this integration and alternatives you've tried:**

I will be setting up the AC unit with regular IR commands but would be great to integrate it into IR Remote Climate. Will update this issue once headway is made.

**Additional context**

Start by gathering the IR command protocol and supported climate functions for the Dometic FreshJet 3000, since the issue provides no implementation files, tests, or command data. Compare those details with existing IR Remote Climate integrations. Done means the unit is integrated with documented commands and coverage for its required climate operations.

Written by the indexing model from the issue text.