Bumping version of YANG Tools to 2.1; adding YANG smoke STC test.

Change-Id: I8bd719351a5dbe6af286779fdc3ac3105c2bbc62
diff --git a/lib/pom.xml b/lib/pom.xml
index 608149b..a3b9ee9 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -40,6 +40,7 @@
         <netty4.version>4.1.5.Final</netty4.version>
         <openflowj.version>3.2.0.onos</openflowj.version>
         <onos-maven-plugin.version>1.10</onos-maven-plugin.version>
+        <onos-yang-tools.version>2.1</onos-yang-tools.version>
         <osgi.version>5.0.0</osgi.version>
         <karaf.version>3.0.8</karaf.version>
         <jersey.version>2.25.1</jersey.version>
@@ -387,6 +388,17 @@
                 <version>${openflowj.version}</version>
                 <scope>provided</scope>
             </dependency>
+
+            <dependency>
+                <groupId>org.onosproject</groupId>
+                <artifactId>onos-yang-model</artifactId>
+                <version>${onos-yang-tools.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>org.onosproject</groupId>
+                <artifactId>onos-yang-runtime</artifactId>
+                <version>${onos-yang-tools.version}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>
 
@@ -567,6 +579,27 @@
                         </execution>
                     </executions>
                 </plugin>
+
+                <plugin>
+                    <groupId>org.onosproject</groupId>
+                    <artifactId>onos-yang-compiler-maven-plugin</artifactId>
+                    <version>${onos-yang-tools.version}</version>
+                    <executions>
+                        <execution>
+                            <goals>
+                                <goal>yang2java</goal>
+                            </goals>
+                        </execution>
+                    </executions>
+                </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <configuration>
+                        <source>1.7</source>
+                        <target>1.7</target>
+                    </configuration>
+                </plugin>
             </plugins>
         </pluginManagement>