GUACAMOLE-957: Support reading multiple LDAP server configurations from "ldap-servers.yml".

extensions/guacamole-auth-ldap/pom.xml

@@ -60,6 +60,16 @@
             <artifactId>guice</artifactId>
         </dependency>
 
+        <!-- Jackson and YAML support -->
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-yaml</artifactId>
+        </dependency>
+
     </dependencies>
 
 </project>