tests: add rule type checks for iprep rules

Added these separately, as they require extra config files.
As the test name still includes `rule-types`, it's still possible to
both batches of tests at once.

Related to
Task #https://redmine.openinfosecfoundation.org/issues/7031

tests/iprep-12-rule-types/README.md

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+# Test Description
+
+Check rule types with iprep keyword present: set, isset and isnotset options.
+
+Test setup copied and adapted from test `iprep-11-isset`.

tests/iprep-12-rule-types/iprep.rules

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+alert ip any any -> any any (sid:1; iprep:dst,2402000,isset;)
+alert ip any any -> any any (sid:2; iprep:dst,2402000,isnotset;)
+alert ip any any -> any any (sid:3; iprep:dst,2402000,=,0;)
+alert http any any -> any any (sid:4; iprep:dst,2402000,=,0;)
+alert http any any -> any any (sid:5; iprep:dst,2402000,isset;)
+alert http any any -> any any (sid:6; iprep:dst,2402000,isnotset;)

tests/iprep-12-rule-types/scirius-categories.txt

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+1,2520000,ET TOR Known Tor Exit Node Traffic
+2,2522000,ET TOR Known Tor Relay/Router (Not Exit) Node Traffic
+3,2403300,ET CINS Active Threat Intelligence Poor Reputation IP
+4,2525000,ET 3CORESec Poor Reputation IP
+5,2400000,ET DROP Spamhaus DROP Listed Traffic Inbound
+6,2500000,ET COMPROMISED Known Compromised or Hostile Host Traffic
+7,2404033,ET CNC Shadowserver Reported CnC Server
+8,2404000,ET CNC Shadowserver Reported CnC Server IP
+9,2404300,ET CNC Feodo Tracker Reported CnC Server
+10,2402000,ET DROP Dshield Block Listed Source