Add org.eclipse.pde.feature dependency to pull additional requirements

Currently the tests are missing some indirect requirements defined in
the feature on their test, this adds the org.eclipse.pde.feature to make
sure all declared items are pulled in.

ui/org.eclipse.pde.ui.tests/pom.xml

@@ -23,9 +23,9 @@
 
   <properties>
     <defaultSigning-excludeInnerJars>true</defaultSigning-excludeInnerJars>
-  	<testSuite>${project.artifactId}</testSuite>
-  	<testClass>org.eclipse.pde.ui.tests.AllPDETests</testClass>
-  	<surefire.testArgLine>-DDetectVMInstallationsJob.disabled=true</surefire.testArgLine>
+      <testSuite>${project.artifactId}</testSuite>
+      <testClass>org.eclipse.pde.ui.tests.AllPDETests</testClass>
+      <surefire.testArgLine>-DDetectVMInstallationsJob.disabled=true</surefire.testArgLine>
   </properties>
 
   <build>
@@ -45,6 +45,22 @@
           </dependencies>
         </configuration>
       </plugin>
+            <plugin>
+                <groupId>org.eclipse.tycho</groupId>
+                <artifactId>target-platform-configuration</artifactId>
+                <configuration>
+                    <dependency-resolution>
+                        <extraRequirements>
+                            <requirement>
+                                <!-- require the pde feature so we get additional dependencies -->
+                                <type>eclipse-feature</type>
+                                <id>org.eclipse.pde</id>
+                                <versionRange>0.0.0</versionRange>
+                            </requirement>
+                        </extraRequirements>
+                    </dependency-resolution>
+                </configuration>
+            </plugin>
     </plugins>
   </build>