feat: add support for ab testing (#820)

Author: ivikash

telemetry/definitions/commonDefinitions.json

@@ -1205,6 +1205,16 @@
                 "codecatalyst"
             ]
         },
+        {
+            "name": "featureValue",
+            "type": "string",
+            "description": "Additional Data Value for AB Testing"
+        },
+        {
+            "name": "featureVariation",
+            "type": "string",
+            "description": "Feature Variant for AB Testing"
+        },
         {
             "name": "filenameExt",
             "type": "string",
@@ -5777,6 +5787,21 @@
                 }
             ]
         },
+        {
+            "name": "experiment_feature_config",
+            "description": "AB Testing Feature response and Cohort Assignments",
+            "metadata": [
+                {
+                    "type": "featureValue"
+                },
+                {
+                    "type": "featureVariation"
+                },
+                {
+                    "type": "id"
+                }
+            ]
+        },
         {
             "name": "feedback_result",
             "description": "Called while submitting in-IDE feedback",
@@ -7035,4 +7060,4 @@
             ]
         }
     ]
-}
+}