add basic tests for namedetails and extratags parameters

tests/features/api/reverse.feature

@@ -36,3 +36,28 @@ Feature: Reverse geocoding
           | 0  | Kings Estate Drive | 84128    | us
         And result 0 has attributes osm_id,osm_type
 
+   Scenario Outline: Reverse Geocoding with extratags
+        Given the request parameters
+          | extratags
+          | 1
+        When looking up <format> coordinates 48.86093,2.2978
+        Then result 0 has attributes extratags
+
+   Examples:
+        | format
+        | xml
+        | json
+        | jsonv2
+
+   Scenario Outline: Reverse Geocoding with namedetails
+        Given the request parameters
+          | namedetails
+          | 1
+        When looking up <format> coordinates 48.86093,2.2978
+        Then result 0 has attributes namedetails
+
+   Examples:
+        | format
+        | xml
+        | json
+        | jsonv2

tests/features/api/search_params.feature

@@ -70,7 +70,7 @@ Feature: Search queries
         Then result addresses contain
           | ID | city
           | 0  | Chicago
-    
+
     Scenario: No POI search with unbounded viewbox
         Given the request parameters
           | viewbox
@@ -202,3 +202,31 @@ Feature: Search queries
         | 0.5
         | 999
         | nan
+
+    Scenario Outline: Search with extratags
+        Given the request parameters
+          | extratags
+          | 1
+        When sending <format> search query "Hauptstr"
+        Then result 0 has attributes extratags
+        And result 1 has attributes extratags
+
+    Examples:
+        | format
+        | xml
+        | json
+        | jsonv2
+
+    Scenario Outline: Search with namedetails
+        Given the request parameters
+          | namedetails
+          | 1
+        When sending <format> search query "Hauptstr"
+        Then result 0 has attributes namedetails
+        And result 1 has attributes namedetails
+
+    Examples:
+        | format
+        | xml
+        | json
+        | jsonv2

tests/features/api/search_simple.feature

@@ -51,6 +51,10 @@ Feature: Simple Tests
      | limit            | 1000
      | dedupe           | 1
      | dedupe           | 0
+     | extratags        | 1
+     | extratags        | 0
+     | namedetails      | 1
+     | namedetails      | 0
 
     Scenario: Search with invalid output format
         Given the request parameters