Add support for new `TROTEC_3550` A/C protocol#1566

Merged

crankyoldgit merged 6 commits intomasterfrom Trotec3550

Aug 16, 2021

+815-17

Commits on Aug 12, 2021

Basic Support for Trotec 3550 protocol
crankyoldgit
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Commits on Aug 13, 2021

Trotec3550: Add experimental detailed support.
crankyoldgit
committed

Commits on Aug 14, 2021

Trotec3550: Add Fahrenheit support
crankyoldgit
committed

Commits on Aug 15, 2021

Commits on Aug 16, 2021

Code Review feedback.
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