[MNG-8675] Correctly deprecate Resource in the model (#2234)

Author: gnodet

api/maven-api-model/src/main/mdo/maven.mdo

@@ -2171,9 +2171,15 @@
     <class>
       <name>Resource</name>
       <description>This element describes all of the classpath resources associated with a project
-        or unit tests.</description>
+        or unit tests.
+
+        @deprecated Replaced by {@code &lt;Source&gt;} with {@code resources} language.
+      </description>
       <version>3.0.0+</version>
       <superClass>FileSet</superClass>
+      <annotations>
+        <annotation>@Deprecated(since = "4.0.0")</annotation>
+      </annotations>
       <fields>
         <field>
           <name>targetPath</name>
@@ -2186,13 +2192,8 @@
             element with this value: {@code org/apache/maven/messages}.
             This is not required if you simply put the resources in that directory
             structure at the source, however.
-
-            @deprecated Replaced by {@code &lt;Source&gt;} with {@code resources} language.
           </description>
           <type>String</type>
-          <annotations>
-            <annotation>@Deprecated(since = "4.0.0")</annotation>
-          </annotations>
         </field>
         <field>
           <name>filtering</name>

src/mdo/model.vm

@@ -114,6 +114,9 @@ import $imp;
  * ${line.trim()}
     #end
  */
+#foreach( $ann in ${class.annotations} )
+${ann}
+#end
 @Experimental
 @Generated @ThreadSafe @Immutable
 public class ${class.name}