Restructure authentication policies. (#1232) #2864

Job	Run time
pykmip-test (1.74.0, hsm)	5m 35s
softhsm2-test (1.74.0, hsm,hsm-tests-pkcs11)	5m 30s
build (ubuntu-latest, 1.74.0, --no-default-features)	6m 52s
softhsm2-test (stable, hsm,hsm-tests-pkcs11)	4m 55s
pykmip-test (1.74.0, hsm,hsm-tests-kmip)	5m 53s
build (ubuntu-latest, 1.74.0)	8m 10s
softhsm2-test (beta, hsm,hsm-tests-pkcs11)	4m 53s
pykmip-test (stable, hsm)	5m 3s
build (ubuntu-latest, 1.74.0, --features all)	7m 20s
pykmip-test (stable, hsm,hsm-tests-kmip)	5m 34s
build (ubuntu-latest, stable, --no-default-features)	6m 30s
pykmip-test (beta, hsm)	4m 52s
build (ubuntu-latest, stable)	7m 35s
pykmip-test (beta, hsm,hsm-tests-kmip)	5m 24s
build (ubuntu-latest, stable, --features all)	8m 19s
build (ubuntu-latest, beta, --no-default-features)	6m 12s
build (ubuntu-latest, beta)	7m 28s
build (ubuntu-latest, beta, --features all)	6m 37s
	1h 52m 42s

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