Add bxt_emit_sound (#83) #718

Job	Run time
rustfmt	15s
stable - Ubuntu - debug	1m 58s
clippy - Ubuntu	45s
stable - Debian (cross to Windows) - debug	1m 7s
stable - Ubuntu - release	2m 1s
clippy - Windows	1m 40s
stable - Debian (cross to Windows) - release	1m 15s
beta - Ubuntu - debug	1m 33s
beta - Debian (cross to Windows) - debug	1m 10s
stable - Windows - debug	3m 31s
stable - Windows - release	3m 18s
beta - Windows - debug	2m 43s
Publish Wiki	16s
	21m 32s

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