Revert "Make scale trigger APIs internal (Azure#38167)" (Azure#38192)

This reverts commit 5c697b1.

Author: JoshLove-msft

sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/api/Microsoft.Azure.WebJobs.Extensions.EventHubs.netstandard2.0.cs

@@ -68,5 +68,6 @@ public static partial class EventHubWebJobsBuilderExtensions
     {
         public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddEventHubs(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder) { throw null; }
         public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddEventHubs(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder, System.Action<Microsoft.Azure.WebJobs.EventHubs.EventHubOptions> configure) { throw null; }
+        public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddEventHubsScaleForTrigger(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder, Microsoft.Azure.WebJobs.Host.Scale.TriggerMetadata triggerMetadata) { throw null; }
     }
 }

sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/src/Config/EventHubWebJobsBuilderExtensions.cs

@@ -92,7 +92,7 @@ public static IWebJobsBuilder AddEventHubs(this IWebJobsBuilder builder, Action<
             return builder;
         }
 
-        internal static IWebJobsBuilder AddEventHubsScaleForTrigger(this IWebJobsBuilder builder, TriggerMetadata triggerMetadata)
+        public static IWebJobsBuilder AddEventHubsScaleForTrigger(this IWebJobsBuilder builder, TriggerMetadata triggerMetadata)
         {
             IServiceProvider serviceProvider = null;
             Lazy<EventHubsScalerProvider> scalerProvider = new Lazy<EventHubsScalerProvider>(() => new EventHubsScalerProvider(serviceProvider, triggerMetadata));

sdk/servicebus/Microsoft.Azure.WebJobs.Extensions.ServiceBus/api/Microsoft.Azure.WebJobs.Extensions.ServiceBus.netstandard2.0.cs

@@ -123,5 +123,6 @@ public static partial class ServiceBusHostBuilderExtensions
     {
         public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddServiceBus(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder) { throw null; }
         public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddServiceBus(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder, System.Action<Microsoft.Azure.WebJobs.ServiceBus.ServiceBusOptions> configure) { throw null; }
+        public static Microsoft.Azure.WebJobs.IWebJobsBuilder AddServiceBusScaleForTrigger(this Microsoft.Azure.WebJobs.IWebJobsBuilder builder, Microsoft.Azure.WebJobs.Host.Scale.TriggerMetadata triggerMetadata) { throw null; }
     }
 }

sdk/servicebus/Microsoft.Azure.WebJobs.Extensions.ServiceBus/src/Config/ServiceBusHostBuilderExtensions.cs

@@ -106,7 +106,7 @@ public static IWebJobsBuilder AddServiceBus(this IWebJobsBuilder builder, Action
             return builder;
         }
 
-        internal static IWebJobsBuilder AddServiceBusScaleForTrigger(this IWebJobsBuilder builder, TriggerMetadata triggerMetadata)
+        public static IWebJobsBuilder AddServiceBusScaleForTrigger(this IWebJobsBuilder builder, TriggerMetadata triggerMetadata)
         {
             IServiceProvider serviceProvider = null;
             Lazy<ServiceBusScalerProvider> scalerProvider = new Lazy<ServiceBusScalerProvider>(() => new ServiceBusScalerProvider(serviceProvider, triggerMetadata));