Add missing ModellingRules references of the Server object

The ModellingRules node of the Server object shall reference the
modelling rules that the server supports. This server supports the
modelling rules mandatory and optional.

tools/schema/Opc.Ua.NodeSet2.Minimal.xml

@@ -656,6 +656,7 @@
     <References>
       <Reference ReferenceType="HasProperty">i=112</Reference>
       <Reference ReferenceType="HasTypeDefinition">i=77</Reference>
+      <Reference ReferenceType="Organizes" IsForward="false">i=2996</Reference>
     </References>
   </UAObject>
   <UAVariable NodeId="i=112" BrowseName="NamingRule" ParentNodeId="i=78" DataType="i=120">
@@ -675,6 +676,7 @@
     <References>
       <Reference ReferenceType="HasProperty">i=113</Reference>
       <Reference ReferenceType="HasTypeDefinition">i=77</Reference>
+      <Reference ReferenceType="Organizes" IsForward="false">i=2996</Reference>
     </References>
   </UAObject>
   <UAVariable NodeId="i=113" BrowseName="NamingRule" ParentNodeId="i=80" DataType="i=120">
@@ -1349,6 +1351,8 @@
     <References>
       <Reference ReferenceType="HasTypeDefinition">i=61</Reference>
       <Reference ReferenceType="HasComponent" IsForward="false">i=2268</Reference>
+      <Reference ReferenceType="Organizes">i=78</Reference>
+      <Reference ReferenceType="Organizes">i=80</Reference>
     </References>
   </UAObject>
   <UAObject NodeId="i=2997" BrowseName="AggregateFunctions" ParentNodeId="i=2268">