[aznamespaces] Event Grid, now using full TypeSpec generation! (Azure#22962)

* Event Grid, now using full TypeSpec generation!
* Removing BinaryMode. It might come as a future feature

Author: richardpark-msft

eng/config.json

@@ -101,6 +101,10 @@
             "Name": "messaging/azeventhubs",
             "CoverageGoal": 0.60
         },
+        {
+            "Name": "messaging/eventgrid/aznamespaces",
+            "CoverageGoal": 0.00
+        },
         {
             "Name": "messaging/internal",
             "CoverageGoal": 0.40

sdk/messaging/eventgrid/aznamespaces/CHANGELOG.md

@@ -4,10 +4,14 @@
 
 ### Features Added
 
-- Added in "binary mode" support, which can improve efficiency when sending a single event (PR#22582)
+- Supports API version `2024-06-01`, including support for release with delay.
 
 ### Breaking Changes
 
+- Sending and receiving operations have been moved to separate clients (SenderClient and ReceiverClient).
+- Method names have been changed, removing `CloudEvent`. 
+- Topic and subscription name are now set at the Client level, as part of `NewSenderClient` or `NewReceiverClient`.
+
 ### Bugs Fixed
 
 ### Other Changes

sdk/messaging/eventgrid/aznamespaces/autorest.md

@@ -1,7 +1,9 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-//go:generate autorest ./autorest.md
+//go:generate pwsh ./testdata/gen.ps1
+//go:generate goimports -w .
+//go:generate go run ./internal/generate
 //go:generate goimports -w .
 
 package aznamespaces