Fix Go SDK for cognitiveservices/anomalydetector (#5686)

This endpoint requires client-side TLS renegotiation to be enabled.
Add a directive to modify the codegen to enable renegotiation.

Author: jhendrixMSFT

specification/cognitiveservices/data-plane/AnomalyDetector/readme.go.md

@@ -7,6 +7,15 @@ go:
   license-header: MICROSOFT_APACHE_NO_VERSION
   namespace: anomalydetector
   clear-output-folder: true
+
+directive:
+  # Replace the default client constructor with the one that enables TLS renegotiation.
+  - from: client.go
+    where: $
+    transform: >-
+      return $.
+        replace( /"context"/g, "\"context\"\n\"crypto/tls\"" ).
+        replace( /autorest\.NewClientWithUserAgent\(UserAgent\(\)\)/g, "autorest.NewClientWithOptions(autorest.ClientOptions{UserAgent: UserAgent(), Renegotiation: tls.RenegotiateFreelyAsClient})" )
 ```
 
 ### Go multi-api
@@ -23,4 +32,4 @@ Please also specify `--go-sdk-folder=<path to the root directory of your azure-s
 
 ``` yaml $(tag) == 'release_1_0' && $(go)
 output-folder: $(go-sdk-folder)/services/preview/cognitiveservices/v1.0/$(namespace)
-```
+```