feat: add make-install-plan utility #3066

Job	Run time
runghc	48s
cabal	1m 8s
nix-build	3m 19s
cabal-doExactConfig	1m 11s
tests-benchmarks	41s
unit-tests	23s
build-extra-hackages	25s
docs	9m 49s
hix	1m 2s
hydra-ifdLevel-0-and-1	5m 30s
hydra-ifdLevel-2	6m 16s
hydra-ifdLevel-3	30m 10s
maintainer-scripts	8s
multi-target	36s
plan-extra-hackages	9s
shellFor-hoogle	14s
shellFor-multiple-package	16s
shellFor-not-depends	17s
shellFor-single-package	16s
check-materialization-concurrency	19s
check-path-support	23s
closure-size	3s
haskell-nix-roots-do-not-require-IFDs	18s
hix-cabal	5m 41s
hydra-without-remote-builders-ghc9101	3m 44s
hydra-without-remote-builders-ghc967	3m 0s
nix-tools	12s
update-docs	6s
	1h 16m 24s

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