PLT-7517 Added setting to enable tracing of Amazon S3 connections (#7349)

* PLT-7517 Added setting to enable tracing of Amazon S3 connections

* Removed unnecessary placeholders on boolean settings

* Added AmazonS3Trace to diagnostics

* Updated AmazonS3Trace setting name in system console

* Removing extra colon

config/default.json

@@ -131,7 +131,8 @@
         "AmazonS3Endpoint": "s3.amazonaws.com",
         "AmazonS3SSL": true,
         "AmazonS3SignV2": false,
-        "AmazonS3SSE": false
+        "AmazonS3SSE": false,
+        "AmazonS3Trace": false
     },
     "EmailSettings": {
         "EnableSignUpWithEmail": true,