Add infrastructure for supporting multiple token slots per unlock method #3180

Job	Run time
checks_with_tang_should_fail (TANG_URL=localhost make -f Makefile test-clevis-loop-should-fail, 1...	3m 32s
checks (make -f Makefile clippy, 1.84.0, clippy)	2m 23s
checks (PROFILEDIR=debug make -f Makefile build, 1.84.0, cargo)	1m 21s
checks_with_udev (RUST_LOG=stratisd=debug make -f Makefile test-loop, 1.84.0, cargo)	39m 13s
checks (PROFILEDIR=debug make -f Makefile build-test-extras, 1.84.0, cargo)	1m 42s
checks (PROFILEDIR=debug make -f Makefile build-min, 1.84.0, cargo)	1m 30s
checks (PROFILEDIR=debug make -f Makefile build-min-no-systemd, 1.84.0, cargo)	1m 30s
checks (PROFILEDIR=debug make -f Makefile build-utils, 1.84.0, cargo)	1m 20s
checks (PROFILEDIR=debug make -f Makefile build-no-ipc, 1.84.0, cargo)	1m 28s
checks (PROFILEDIR=debug make -f Makefile stratisd-tools, 1.84.0, cargo)	1m 19s
checks (make -f Makefile docs-ci, 1.84.0, cargo)	1m 17s
checks (make -f Makefile test, 1.84.0, cargo)	1m 49s
checks (make -f Makefile build, 1.84.0, cargo)	2m 7s
checks (make -f Makefile build-test-extras, 1.84.0, cargo)	1m 52s
checks (make -f Makefile build-min, 1.84.0, cargo)	1m 50s
checks (make -f Makefile build-no-ipc, 1.84.0, cargo)	1m 46s
	1h 5m 59s

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