Issue #730: Allow multiple suppression files in Maven

The core has been extended to handle multiple suppression files
Extended the Ant test to cover multiple suppression files
NOTE: This change is breaking for users of the Maven plugin

dependency-check-maven/src/it/730-multiple-suppression-files/pom.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+This file is part of dependency-check-core.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Copyright (c) 2017 The OWASP Foundation. All Rights Reserved.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.owasp.test</groupId>
+    <artifactId>test-multiple-suppression-files</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <!-- These can be replaced by any other vulnerable dependency -->
+        <dependency>
+            <groupId>com.vaadin.external.google</groupId>
+            <artifactId>android-json</artifactId>
+            <version>0.0.20131108.vaadin1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-xml</artifactId>
+            <version>2.4.5</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.owasp</groupId>
+                <artifactId>dependency-check-maven</artifactId>
+                <configuration>
+                    <suppressionFiles>
+                        <param>${project.basedir}/test-suppression1.xml</param>
+                        <param>${project.basedir}/test-suppression2.xml</param>
+                    </suppressionFiles>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>