Added changes to make the list of preloaded policy types configurable

Issue-ID: POLICY-2210
Change-Id: I84b512a783c1fdc0834cf79bdce4c48a7803b884
Signed-off-by: Chenfei Gao <cgao@research.att.com>
diff --git a/pom.xml b/pom.xml
index a2aa146..6cbefdf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,6 +59,10 @@
 
     <dependencies>
         <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <scope>test</scope>