MQE-1963: Update XSD Schema to verify that file has only single entity

Author: jilu1

dev/tests/verification/TestModule/ActionGroup/FunctionalActionGroup/FunctionalActionGroupForMergeActionGroup.xml

@@ -11,8 +11,8 @@
         <arguments>
             <argument name="myArg"/>
         </arguments>
-        <fillField stepKey="deleteMe" userInput="Please delete me" selector="#delete" />
         <see selector="{{SampleSection.oneParamElement(myArg.firstname)}}" stepKey="see1"/>
         <amOnPage url="{{SamplePage.url(myArg.firstname,myArg.lastname)}}" stepKey="amOnPage1"/>
+        <remove keyForRemoval="deleteMe"/>
     </actionGroup>
 </actionGroups>

dev/tests/verification/TestModule/ActionGroup/MergeFunctionalActionGroup/FunctionalActionGroupForMergeActionGroup.xml

@@ -8,8 +8,8 @@
 <actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
     <actionGroup name="FunctionalActionGroupForMerge">
+        <fillField stepKey="deleteMe" userInput="Please delete me" selector="#delete" />
         <see stepKey="myMergedSeeElement" selector=".merge .{{myArg.firstname}}" before="see1"/>
         <click stepKey="myMergedClick" selector=".merge .{{myArg.lastname}}" after="amOnPage1"/>
-        <remove keyForRemoval="deleteMe"/>
     </actionGroup>
 </actionGroups>