revert last commit to be pushed on feature branch. Add example hello world skill enum parameter

source/RobotAPI/components/skills/SkillProviderExample/aron/HelloWorldAcceptedType.xml

@@ -16,6 +16,12 @@
             <ObjectChild key='some_int'>
                 <int32 />
             </ObjectChild>
+            <ObjectChild key='some_int_enum'>
+                <HelloWorldInteEnum />
+            </ObjectChild>
+            <ObjectChild key='some_optional_int_enum'>
+                <HelloWorldInteEnum optional="true" />
+            </ObjectChild>
             <ObjectChild key='some_float'>
                 <float32 />
             </ObjectChild>