Restructure authentication policies. #2863

Job	Run time
softhsm2-test (1.74.0, hsm,hsm-tests-pkcs11)	5m 37s
pykmip-test (1.74.0, hsm)	5m 33s
softhsm2-test (stable, hsm,hsm-tests-pkcs11)	4m 58s
build (ubuntu-latest, 1.74.0, --no-default-features)	6m 51s
pykmip-test (1.74.0, hsm,hsm-tests-kmip)	6m 3s
softhsm2-test (beta, hsm,hsm-tests-pkcs11)	4m 51s
build (ubuntu-latest, 1.74.0)	8m 10s
pykmip-test (stable, hsm)	5m 6s
build (ubuntu-latest, 1.74.0, --features all)	7m 29s
pykmip-test (stable, hsm,hsm-tests-kmip)	5m 44s
build (ubuntu-latest, stable, --no-default-features)	7m 6s
pykmip-test (beta, hsm)	5m 8s
build (ubuntu-latest, stable)	7m 37s
pykmip-test (beta, hsm,hsm-tests-kmip)	5m 28s
build (ubuntu-latest, stable, --features all)	8m 23s
build (ubuntu-latest, beta, --no-default-features)	6m 19s
build (ubuntu-latest, beta)	7m 21s
build (ubuntu-latest, beta, --features all)	6m 38s
	1h 54m 22s

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