Fix for the wrong value of the "additionalProperties" property (#3219)

* Added Korto sub-folder to certified-connectors folder, with all necessary files for defining a custom connector

* Remove "API" keyword from the connector description.

* - "additionalProperties" set to true (was set to false by mistake)

certified-connectors/Korto/apiDefinition.swagger.json

@@ -440,7 +440,7 @@
   "definitions": {
     "Tag": {
       "type": "object",
-      "additionalProperties": false,
+      "additionalProperties": true,
       "x-ntx-summary": "Tag"
     },
     "QueryTagResponseItem": {
@@ -493,7 +493,7 @@
           "type": "boolean"
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     },
     "QueryTagsResponse": {
       "type": "object",
@@ -510,7 +510,7 @@
           }
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     },
     "RecordQueryResponseItem": {
       "type": "object",
@@ -563,7 +563,7 @@
           "format": "date-time"
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     },
     "RecordVersion": {
       "type": "object",
@@ -593,7 +593,7 @@
           "type": "string"
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     },
     "TagResponseMessage": {
       "type": "object",
@@ -646,7 +646,7 @@
           "format": "int32"
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     },
     "DownloadUrlMessage": {
       "type": "object",
@@ -655,7 +655,7 @@
           "type": "string"
         }
       },
-      "additionalProperties": false
+      "additionalProperties": true
     }
   },
   "parameters": {},