amazonq: add raw suggestion token count to code percentage event (#812)

## Problem
We are need both unmodified and raw chars count for code percentage event
## Solution
Add another field for the raw token count

Author: zixlin7

telemetry/definitions/commonDefinitions.json

@@ -490,7 +490,7 @@
         {
             "name": "codewhispererAcceptedTokens",
             "type": "int",
-            "description": "The metrics accepted on suggested CodeWhisperer code"
+            "description": "The number of tokens that are accepted and not modified by the user"
         },
         {
             "name": "codewhispererAllCompletionsLatency",
@@ -766,6 +766,11 @@
             "type": "string",
             "description": "The unique identifier for a CodeWhisperer session(which can contain multiple requests)"
         },
+        {
+            "name": "codewhispererSuggestedTokens",
+            "type": "int",
+            "description": "The number of tokens in the original code suggestions"
+        },
         {
             "name": "codewhispererSuggestionCount",
             "type": "int",
@@ -4378,6 +4383,10 @@
                 {
                     "type": "codewhispererPercentage"
                 },
+                {
+                    "type": "codewhispererSuggestedTokens",
+                    "required": false
+                },
                 {
                     "type": "codewhispererTotalTokens"
                 },