test/parseconf: Add conf_examples for relays

Tests relay/relay_config.c.

Part of 32213.

src/test/conf_examples/relay_01/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_01/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# Empty linelist values are ignored with a warning
+ORPort
+DirPort

src/test/conf_examples/relay_02/error_no_dirauth_relay

+Unrecognized value bad

src/test/conf_examples/relay_02/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# Bad options are also ignored
+ORPort illegal_hostname_chars$()^*%(%#%)#(%*
+DirPort illegal_hostname_chars$()^*%(%#%)#(%*
+DirCache bad
+BridgeRelay bad

src/test/conf_examples/relay_03/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_03/expected

+DirPort 1
+ORPort 0

src/test/conf_examples/relay_03/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# DirPort, but no ORPort
+ORPort 0
+DirPort 1

src/test/conf_examples/relay_04/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_04/expected

+Nickname Unnamed
+ORPort 1

src/test/conf_examples/relay_04/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# Try a valid minimal config
+ORPort 1

src/test/conf_examples/relay_05/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_05/expected

+DirPort 2
+Nickname Unnamed
+ORPort 1

src/test/conf_examples/relay_05/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# Try a valid minimal directory mirror config
+ORPort 1
+DirPort 2

src/test/conf_examples/relay_06/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_06/expected

+BridgeRelay 1
+Nickname Unnamed
+ORPort 1

src/test/conf_examples/relay_06/torrc

+# Relay tests
+# Options from relay/relay_config.c
+# Try a valid minimal bridge config
+ORPort 1
+BridgeRelay 1

src/test/conf_examples/relay_07/error_no_dirauth_relay

+This tor was built with relay mode disabled.

src/test/conf_examples/relay_07/expected

+DirCache 0
+Nickname Unnamed
+ORPort 1