Seperated Create_Workspace as a seperate XML task

Create_Workspace is used used in XML files instead of directly being
executed in DeployObject(). This can be problematic if we deploy
multiple services on the same host, since a previous workspace will be
deleted. Also, it removes futile git clones.

There are other XML steps (CppCheckAnalysis, LicenceAndFormattingCheck,
BuildImage, BuildProxy, BuildClusterImage) that implicitly called
Create_Workspace. Those calls have been removed and care has been taken
to insert the corresponding Create_Workspace steps in the XML.

ci-scripts/xml_files/cluster_image_build.xml

@@ -24,9 +24,15 @@
 	<htmlTabRef>build-tab</htmlTabRef>
 	<htmlTabName>Build Images on Cluster</htmlTabName>
 	<htmlTabIcon>wrench</htmlTabIcon>
-	<TestCaseRequestedList>000001</TestCaseRequestedList>
+	<TestCaseRequestedList>
+	000002
+	000001
+	</TestCaseRequestedList>
 	<TestCaseExclusionList></TestCaseExclusionList>
-
+    <testCase id="000002">
+        <class>Create_Workspace</class>
+        <desc>Creating new Workspace</desc>
+    </testCase>
 	<testCase id="000001">
 		<class>Build_Cluster_Image</class>
 		<desc>Build Images on OpenShift Cluster</desc>