Reformat Robot files to follow best practices

Best practices in Robot files consist in using three spaces as
separator and not using tabs. This change updates all files
and includes the checking of the format as part of
`devops-stages/stage-test.sh`. In addition, it checks that files
have no CRLF terminators.

Change-Id: Ie71c2dd92585eba3baf98df0be54f05828819ad8
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/basic_14-vnf_relations.robot b/robot-systest/testsuite/basic_14-vnf_relations.robot
index 91f4a4d..dfe164a 100644
--- a/robot-systest/testsuite/basic_14-vnf_relations.robot
+++ b/robot-systest/testsuite/basic_14-vnf_relations.robot
@@ -11,7 +11,7 @@
 #   limitations under the License.
 
 *** Settings ***
-Documentation     [BASIC-14] VNF Relations
+Documentation   [BASIC-14] VNF Relations
 
 Library   OperatingSystem
 Library   SSHLibrary
@@ -45,18 +45,18 @@
 *** Test Cases ***
 Create Charm VNF Descriptor
 
-    Create VNFD  '%{PACKAGES_FOLDER}/${vnfd_pkg}'
+    Create VNFD   '%{PACKAGES_FOLDER}/${vnfd_pkg}'
 
 
 Create Charm NS Descriptor
 
-    Create NSD  '%{PACKAGES_FOLDER}/${nsd_pkg}'
+    Create NSD   '%{PACKAGES_FOLDER}/${nsd_pkg}'
 
 
 Instantiate Charm Network Service
 
-    ${id}=  Create Network Service  ${nsd_name}  %{VIM_TARGET}  ${ns_name}  ${ns_config}  ${publickey}  ${ns_timeout}
-    Set Suite Variable  ${ns_id}  ${id}
+    ${id}=   Create Network Service   ${nsd_name}   %{VIM_TARGET}   ${ns_name}   ${ns_config}   ${publickey}   ${ns_timeout}
+    Set Suite Variable   ${ns_id}   ${id}
 
 
 # TODO Check juju status for relations
@@ -65,28 +65,28 @@
 Delete NS Instance
     [Tags]   cleanup
 
-    Delete NS  ${ns_name}
+    Delete NS   ${ns_name}
 
 
 Delete NS Descriptor
     [Tags]   cleanup
 
-    Delete NSD  ${nsd_name}
+    Delete NSD   ${nsd_name}
 
 
 Delete VNF Descriptor Provides
     [Tags]   cleanup
 
-    Delete VNFD  ${vnfd_name}
+    Delete VNFD   ${vnfd_name}
 
 
 *** Keywords ***
 Suite Cleanup
-    [Documentation]  Test Suite Cleanup: Deleting descriptors and NS instance
+    [Documentation]   Test Suite Cleanup: Deleting descriptors and NS instance
 
-    Run Keyword If Any Tests Failed  Delete NS  ${ns_name}
+    Run Keyword If Any Tests Failed   Delete NS   ${ns_name}
 
-    Run Keyword If Any Tests Failed  Delete NSD  ${nsd_name}
+    Run Keyword If Any Tests Failed   Delete NSD   ${nsd_name}
 
-    Run Keyword If Any Tests Failed  Delete VNFD  ${vnfd_name}
+    Run Keyword If Any Tests Failed   Delete VNFD   ${vnfd_name}