REST tests - add feature groovy_scripting to skip tests if groovy not enabled

rest-api-spec/test/script/10_basic.yaml

@@ -1,6 +1,9 @@
 ---
 "Indexed script":
 
+  - skip:
+      features: groovy_scripting
+
   - do:
       put_script:
         id: "1"

rest-api-spec/test/script/20_versions.yaml

@@ -1,6 +1,10 @@
 ---
 "External version":
 
+ - skip:
+      features: groovy_scripting
+
+
  - do:
       put_script:
           lang:           groovy

rest-api-spec/test/update/15_script.yaml

@@ -1,6 +1,9 @@
 ---
 "Script":
 
+  - skip:
+      features: groovy_scripting
+
   - do:
       index:
           index:  test_1

rest-api-spec/test/update/25_script_upsert.yaml

@@ -1,6 +1,9 @@
 ---
 "Script upsert":
 
+  - skip:
+      features: groovy_scripting
+
   - do:
       update:
           index:    test_1
@@ -37,7 +40,7 @@
           id:     1
 
   - match:  { _source.foo: xxx }
-  
+
   - do:
       update:
           index:    test_1
@@ -57,4 +60,4 @@
 
   - match:  { _source.foo: xxx }
 
-  
+

rest-api-spec/test/update/90_missing.yaml

@@ -20,6 +20,9 @@
 ---
 "Missing document (script)":
 
+  - skip:
+      features: groovy_scripting
+
 
   - do:
       catch:      missing