Add get_project instance placement scriptlet function #1839

Job	Run time
Client (1.21.x, ubuntu-latest)	27s
Client (1.21.x, macos-latest)	23s
Client (1.21.x, windows-latest)	2m 13s
Code	7m 15s
Documentation	7m 25s
System (1.21.x, cluster, dir)	11m 28s
System (1.21.x, cluster, btrfs)	12m 55s
System (1.21.x, cluster, lvm)	15m 11s
System (1.21.x, cluster, zfs)	12m 52s
System (1.21.x, cluster, ceph)	16m 1s
System (1.21.x, cluster, random)	12m 43s
System (1.21.x, standalone, dir)	21m 39s
System (1.21.x, standalone, btrfs)	21m 6s
System (1.21.x, standalone, lvm)	39m 11s
System (1.21.x, standalone, zfs)	39m 3s
System (1.21.x, standalone, ceph)	1h 13m 22s
System (1.21.x, standalone, random)	30m 7s
System (stable, cluster, dir)	11m 38s
System (stable, standalone, dir)	20m 55s
System (tip, cluster, dir)	13m 51s
System (tip, standalone, dir)	23m 6s
	6h 32m 51s

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