Started the attempts of prep run for vtkXMLExport

- Fixed the setup so it works with the new CM
- First test passing.

Will comment all other tests in next commit.
UNINTERISTING COMMIT

vtkXMLExportTester :
	- Commented all the tests that don't pass for successive uncommenting
	  in the next commits
All tests in vtkXMLExportTester passing

- Uncommented tests previously commented
- Added folder XMLExport in Templates, to contain the version of TestProject.xml
  used by the tests
General Prep Run working.

- Fixed typo in vtkCreateProjectTester
- Normalization in vtkRecreateConfigurationTester