Addition of 168bit Hitachi IR AC Codes

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

I'm decoding an AC remote for a hitachi air conditioning unit, it is very similar to the existing whirlpool DG11J1_91 by @glmnet

More information can be found in my git https://github.com/Rodrigoah/HCRA31NEWH-HITACHI-IRDecode

unfortunately my skills are not enough to compile my code locally to test

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

**Additional context**

Start by comparing the existing Whirlpool DG11J1_91 integration with the code in the linked HCRA31NEWH-HITACHI-IRDecode repository. Confirm the 168-bit Hitachi AC protocol and identify the appropriate ESPHome integration entry point; done means the new codes compile and can control the stated Hitachi unit.

Written by the indexing model from the issue text.