[333] Migrate data used by SimpleELKLayoutTest

This commit just migrates the data used by SimpleELKLayoutTest without
any change.
It also seems that some diagrams have not been refreshed according to
previous modifications done on VSM file. All diagrams have been opened
(and so refreshed) for this commit.

Bug: #333

plugins/org.eclipse.sirius.tests.junit/data/unit/layout/withELK/My.odesign

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<description:Group xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:description="http://www.eclipse.org/sirius/description/1.1.0" xmlns:description_1="http://www.eclipse.org/sirius/diagram/description/1.1.0" xmlns:style="http://www.eclipse.org/sirius/diagram/description/style/1.1.0" name="My" version="12.0.0.2017041100">
+<description:Group xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:description="http://www.eclipse.org/sirius/description/1.1.0" xmlns:description_1="http://www.eclipse.org/sirius/diagram/description/1.1.0" xmlns:style="http://www.eclipse.org/sirius/diagram/description/style/1.1.0" name="My" version="15.4.0.202401051836">
   <ownedViewpoints name="ElkTestViewpoint" modelFileExtension="ecore">
     <ownedRepresentations xsi:type="description_1:DiagramDescription" name="SimpleDiagramWithSVGShape" domainClass="ecore::EPackage" enablePopupBars="true">
       <metamodel href="http://www.eclipse.org/emf/2002/Ecore#/"/>
@@ -578,7 +578,7 @@
           <targets>PARENT</targets>
           <value name="DOWN"/>
         </layoutOptions>
-        <layoutOptions xsi:type="description_1:EnumLayoutOption" id="org.eclipse.elk.layered.considerModelOrder">
+        <layoutOptions xsi:type="description_1:EnumLayoutOption" id="org.eclipse.elk.layered.considerModelOrder.strategy">
           <targets>PARENT</targets>
           <value name="NODES_AND_EDGES"/>
         </layoutOptions>
@@ -628,7 +628,7 @@
           <targets>PARENT</targets>
           <value name="DOWN"/>
         </layoutOptions>
-        <layoutOptions xsi:type="description_1:EnumLayoutOption" id="org.eclipse.elk.layered.considerModelOrder">
+        <layoutOptions xsi:type="description_1:EnumLayoutOption" id="org.eclipse.elk.layered.considerModelOrder.strategy">
           <targets>PARENT</targets>
           <value name="NONE"/>
         </layoutOptions>