Susp is a 1-functor; Join Bool A <~> Susp A; etc. #1601

Job	Run time
nix	3m 36s
build (supported)	4m 3s
quick-build (supported, ubuntu-latest)	3m 19s
build (latest)	4m 48s
opam-build (supported, ubuntu-latest)	5m 34s
opam-build (8.17, ubuntu-latest)	5m 20s
build (dev, --warnings)	3m 35s
quick-build (latest, ubuntu-latest)	3m 18s
opam-build (latest, ubuntu-latest)	5m 19s
quick-build (dev, ubuntu-latest)	3m 33s
opam-build (dev, ubuntu-latest)	5m 33s
doc-coqdoc	1m 25s
doc-dep-graphs	10m 12s
coqchk (supported)	2m 24s
doc-alectryon	15m 58s
coqchk (latest)	1m 38s
doc-timing	1m 29s
install (supported)	1m 21s
install (latest)	1m 27s
coqchk (dev)	1m 45s
install (dev)	1m 12s
deploy-doc	0s
delete-artifacts	10s
	1h 26m 59s

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