add PT Research ruleset defintion (easy example of the new compressed rule support and demos the prefered method of content distribution for OPNsense/IDS).

Their rules come with a different license, hence the note "for non-commercial use". More information about the ruleset and license https://github.com/ptresearch/AttackDetection

Makefile

@@ -3,7 +3,7 @@ PAGER?=		less
 all:
 	@cat ${.CURDIR}/README.md | ${PAGER}
 
-CATEGORIES=	devel net sysutils
+CATEGORIES=	devel net sysutils security
 
 .for CATEGORY in ${CATEGORIES}
 _${CATEGORY}!=	ls -1d ${CATEGORY}/*

security/ids-content-pt-research/Makefile

@@ -0,0 +1,7 @@
+PLUGIN_NAME=		ids-content-pt-research
+PLUGIN_VERSION=		1.0
+PLUGIN_REVISION=	1
+PLUGIN_COMMENT=		IDS PT Research ruleset (only for non-commercial use)
+PLUGIN_MAINTAINER=	ad@opnsense.org
+
+.include "../../Mk/plugins.mk"

security/ids-content-pt-research/src/opnsense/scripts/suricata/metadata/rules/pt-research.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<ruleset>
+    <location url="https://github.com/ptresearch/AttackDetection/raw/master/" prefix="Non-Free"/>
+    <files>
+        <file url="https://github.com/ptresearch/AttackDetection/raw/master/pt.rules.tar.gz"
+              description="PT Research ruleset"
+        >pt.research.rules</file>
+    </files>
+</ruleset>