added changes to support new argument for version less name

Author: apurvghai

src/Cli/Microsoft.DotNet.Cli.Definitions/CommandDefinitionStrings.resx

@@ -1330,6 +1330,9 @@ To display a value, specify the corresponding command-line option without provid
   <data name="PackCmdVersionDescription" xml:space="preserve">
     <value>The version of the package to create</value>
   </data>
+  <data name="PackCmdOutputFileNamesWithoutVersionDescription" xml:space="preserve">
+    <value>Do not include the version in the output file name.</value>
+  </data>
   <data name="PackCmdVersion" xml:space="preserve">
     <value>VERSION</value>
   </data>

src/Cli/Microsoft.DotNet.Cli.Definitions/Commands/Pack/PackCommandDefinition.cs

@@ -51,6 +51,12 @@ internal sealed class PackCommandDefinition : Command
         Arity = ArgumentArity.Zero
     }.ForwardAs("-property:Serviceable=true");
 
+    public readonly Option<bool> OutputFileNamesWithoutVersionOption = new Option<bool>("--OutputFileNamesWithoutVersion")
+    {
+        Description = CommandDefinitionStrings.PackCmdOutputFileNamesWithoutVersionDescription,
+        Arity = ArgumentArity.Zero
+    }.ForwardAs("-property:OutputFileNamesWithoutVersion=true");
+
     public readonly Option<bool> NoLogoOption = CommonOptions.CreateNoLogoOption();
 
     public readonly Option<bool> NoRestoreOption = CommonOptions.CreateNoRestoreOption();
@@ -102,6 +108,7 @@ public PackCommandDefinition()
         Options.Add(IncludeSymbolsOption);
         Options.Add(IncludeSourceOption);
         Options.Add(ServiceableOption);
+        Options.Add(OutputFileNamesWithoutVersionOption);
         Options.Add(NoLogoOption);
         Options.Add(InteractiveOption);
         Options.Add(NoRestoreOption);