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/container_l2sim_proxy.xml

@@ -26,10 +26,17 @@
         <htmlTabIcon>wrench</htmlTabIcon>
         <repeatCount>1</repeatCount>
         <TestCaseRequestedList>
+ 100001
  000001
         </TestCaseRequestedList>
         <TestCaseExclusionList></TestCaseExclusionList>
 
+        <testCase id="100001">
+                <class>Create_Workspace</class>
+                <desc>Creating new Workspace</desc>
+                <eNB_instance>1</eNB_instance>
+                <eNB_serverId>1</eNB_serverId>
+        </testCase>
         <testCase id="000001">
                 <class>Build_Proxy</class>
                 <desc>Build L2sim Proxy Image</desc>