Add heat/dry/cool isee operation mode to xdrv_44_miel_hvac.ino

[grzegorz914]

This add HEAT, DRY, and COOL iSEE operation mode to support new AC devices.

Description:

Related issue (if applicable): fixes #10937

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.8
• The code change is tested and works with Tasmota core ESP32 V.3.1.0.240926
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass