Add ghost playback #720

Job	Run time
rustfmt	11s
clippy - Ubuntu	1m 32s
stable - Ubuntu - debug	3m 26s
clippy - Windows	2m 57s
stable - Debian (cross to Windows) - debug	2m 15s
stable - Ubuntu - release	4m 10s
stable - Debian (cross to Windows) - release	2m 59s
beta - Ubuntu - debug	3m 4s
beta - Debian (cross to Windows) - debug	7m 16s
stable - Windows - debug	5m 6s
stable - Windows - release	7m 14s
beta - Windows - debug	5m 28s
Publish Wiki	0s
	45m 38s

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