Add Eufy T9146 decoder #2070

Job	Run time
examples	1m 17s
GCC (9)	2m 16s
Visual Studio (windows-2022)	1m 4s
Clang (16, -fsanitize=leak -fno-sanitize-recover=all)	43s
python	19s
check	13s
XCode (16.1)	25s
	6m 17s

Provide feedback