Move protooptions to sdk/pbs (#1486)

This prevents a reverse dependency from sdk on the main module.

sdk/pbs/controller/api/resources/authmethods/auth_method.pb.go

@@ -7,8 +7,8 @@
 package authmethods
 
 import (
-	_ "github.com/hashicorp/boundary/internal/gen/controller/protooptions"
 	scopes "github.com/hashicorp/boundary/sdk/pbs/controller/api/resources/scopes"
+	_ "github.com/hashicorp/boundary/sdk/pbs/controller/protooptions"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	structpb "google.golang.org/protobuf/types/known/structpb"