Log PowerShell Worker version on start (#330)

Log worker version on start

Author: AnatoliB

src/Worker.cs

@@ -14,6 +14,8 @@
 
 namespace Microsoft.Azure.Functions.PowerShellWorker
 {
+    using LogLevel = Microsoft.Azure.WebJobs.Script.Grpc.Messages.RpcLog.Types.Level;
+
     /// <summary>
     /// The PowerShell language worker for Azure Function
     /// </summary>
@@ -24,6 +26,10 @@ public static class Worker
         /// </summary>
         public async static Task Main(string[] args)
         {
+            RpcLogger.WriteSystemLog(
+                LogLevel.Information,
+                string.Format(PowerShellWorkerStrings.PowerShellWorkerVersion, typeof(Worker).Assembly.GetName().Version));
+
             WorkerArguments arguments = null;
             Parser.Default.ParseArguments<WorkerArguments>(args)
                 .WithParsed(ops => arguments = ops)

src/resources/PowerShellWorkerStrings.resx

@@ -117,6 +117,9 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <data name="PowerShellWorkerVersion" xml:space="preserve">
+    <value>Azure Functions PowerShell Worker version [{0}]".</value>
+  </data>
   <data name="RequireEntryPointForScriptModule" xml:space="preserve">
     <value>The 'entryPoint' property needs to be specified when 'scriptFile' points to a PowerShell module script file (.psm1).</value>
   </data>