test/parseconf: Add basic dirauth and bridgeauth tests

Part of 32123.

src/test/conf_examples/bridgeauth_1/expected

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+Address 198.51.100.123
+AuthoritativeDirectory 1
+BridgeAuthoritativeDir 1
+ContactInfo tor_parse_test@example.com
+DirPort 80
+Nickname Unnamed
+ORPort 443

src/test/conf_examples/bridgeauth_1/expected_no_dirauth

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+Address 198.51.100.123
+AuthoritativeDirectory 1
+BridgeAuthoritativeDir 1
+ContactInfo tor_parse_test@example.com
+DirPort 80
+Nickname Unnamed
+ORPort 443

src/test/conf_examples/bridgeauth_1/expected_no_dirauth_relay

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+Address 198.51.100.123
+AuthoritativeDirectory 1
+BridgeAuthoritativeDir 1
+ContactInfo tor_parse_test@example.com
+DirPort 80
+ORPort 443

src/test/conf_examples/bridgeauth_1/torrc

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+AuthoritativeDirectory 1
+BridgeAuthoritativeDir 1
+
+ContactInfo tor_parse_test@example.com
+
+Address 198.51.100.123
+ORPort 443
+DirPort 80

src/test/conf_examples/dirauth_1/expected

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+Address 192.0.2.1
+AuthoritativeDirectory 1
+ContactInfo tor_parse_test@example.net
+DirPort 9030
+DownloadExtraInfo 1
+Nickname Unnamed
+ORPort 9001
+V3AuthoritativeDirectory 1

src/test/conf_examples/dirauth_1/expected_no_dirauth

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+Address 192.0.2.1
+AuthoritativeDirectory 1
+ContactInfo tor_parse_test@example.net
+DirPort 9030
+Nickname Unnamed
+ORPort 9001
+V3AuthoritativeDirectory 1

src/test/conf_examples/dirauth_1/expected_no_dirauth_relay

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+Address 192.0.2.1
+AuthoritativeDirectory 1
+ContactInfo tor_parse_test@example.net
+DirPort 9030
+ORPort 9001
+V3AuthoritativeDirectory 1

src/test/conf_examples/dirauth_1/torrc

@@ -0,0 +1,8 @@
+AuthoritativeDirectory 1
+V3AuthoritativeDirectory 1
+
+ContactInfo tor_parse_test@example.net
+
+Address 192.0.2.1
+ORPort 9001
+DirPort 9030