Expose log constants via type-aliasing (Azure#17577)

<!--
Thank you for contributing to the Azure SDK for Go.

Please verify the following before submitting your PR, thank you!
-->

- [ ] The purpose of this PR is explained in this or a referenced issue.
- [ ] The PR does not update generated files.
   - These files are managed by the codegen framework at [Azure/autorest.go][].
- [ ] Tests are included and/or updated for code changes.
- [ ] Updates to [CHANGELOG.md][] are included.
- [ ] MIT license headers are included in each file.

[Azure/autorest.go]: https://github.com/Azure/autorest.go
[CHANGELOG.md]: https://github.com/Azure/azure-sdk-for-go/blob/main/CHANGELOG.md

Author: jhendrixMSFT

sdk/messaging/azservicebus/internal/log.go

@@ -8,7 +8,7 @@ import (
 	"github.com/Azure/azure-sdk-for-go/sdk/messaging/azservicebus/internal/atom"
 )
 
-// NOTE: these are intended to mirror the constant values in azservicebus/log.go
+// NOTE: these are publicly exported via type-aliasing in azservicebus/log.go
 const (
 	// EventConn is used whenever we create a connection or any links (ie: receivers, senders).
 	EventConn log.Event = "azsb.Conn"

sdk/messaging/azservicebus/log.go

@@ -3,21 +3,21 @@
 
 package azservicebus
 
-import "github.com/Azure/azure-sdk-for-go/sdk/azcore/log"
+import "github.com/Azure/azure-sdk-for-go/sdk/messaging/azservicebus/internal"
 
 const (
 	// EventConn is used whenever we create a connection or any links (ie: receivers, senders).
-	EventConn log.Event = "azsb.Conn"
+	EventConn = internal.EventConn
 
 	// EventAuth is used when we're doing authentication/claims negotiation.
-	EventAuth log.Event = "azsb.Auth"
+	EventAuth = internal.EventAuth
 
 	// EventReceiver represents operations that happen on Receivers.
-	EventReceiver log.Event = "azsb.Receiver"
+	EventReceiver = internal.EventReceiver
 
 	// EventSender represents operations that happen on Senders.
-	EventSender log.Event = "azsb.Sender"
+	EventSender = internal.EventSender
 
 	// EventAdmin is used for operations in the azservicebus/admin.Client
-	EventAdmin log.Event = "azsb.Admin"
+	EventAdmin = internal.EventAdmin
 )