Add support for Broadlink RM Max (0xAF8B)

The RM Max is the successor to the RM4 Pro with IR and RF 433MHz
capabilities. Map its device type to the rm4pro class.

Closes #829

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: amasolov

README.md

@@ -2,7 +2,7 @@
 
 A Python module and CLI for controlling Broadlink devices locally. The following devices are supported:
 
-- **Universal remotes**: RM home, RM mini 3, RM plus, RM pro, RM pro+, RM4 mini, RM4 pro, RM4C mini, RM4S, RM4 TV mate
+- **Universal remotes**: RM home, RM mini 3, RM plus, RM pro, RM pro+, RM4 mini, RM4 pro, RM4C mini, RM4S, RM4 TV mate, RM Max
 - **Smart plugs**: SP mini, SP mini 3, SP mini+, SP1, SP2, SP2-BR, SP2-CL, SP2-IN, SP2-UK, SP3, SP3-EU, SP3S-EU, SP3S-US, SP4L-AU, SP4L-EU, SP4L-UK, SP4M, SP4M-US, Ankuoo NEO, Ankuoo NEO PRO, Efergy Ego, BG AHC/U-01
 - **Switches**: MCB1, SC1, SCB1E, SCB2
 - **Outlets**: BG 800, BG 900

broadlink/__init__.py

@@ -146,6 +146,7 @@
         0x61A2: ("RM4 pro", "Broadlink"),
         0x649B: ("RM4 pro", "Broadlink"),
         0x653C: ("RM4 pro", "Broadlink"),
+        0xAF8B: ("RM Max", "Broadlink"),
     },
     a1: {
         0x2714: ("A1", "Broadlink"),