Add build targets / prop file for samples

Author: rhurey

sdk/ai/Azure.AI.VoiceLive/samples/Directory.Build.props

@@ -0,0 +1,23 @@
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ExcludeFromCodeCoverage>true</ExcludeFromCodeCoverage>
+    <ImportRepoCommonSettings>true</ImportRepoCommonSettings>
+    <!-- Signal that samples are building in the repo as opposed to a standalone download from Samples Browser -->
+    <IsClientLibrary>true</IsClientLibrary>
+    <IsPackable>true</IsPackable>
+    <IsSample>true</IsSample>
+    <WarnOnPackingNonPackableProject>false</WarnOnPackingNonPackableProject>
+    <NoWarn>
+      $(NoWarn);
+      NU5104;
+    </NoWarn>
+  </PropertyGroup>
+
+  <Import Project="..\Directory.Build.props" />
+
+  <PropertyGroup>
+    <DefineConstants>$(DefineConstants);STRONGNAME_SIGNED</DefineConstants>
+    <InheritDocEnabled>false</InheritDocEnabled>
+    <IsShippingLibrary>false</IsShippingLibrary>
+  </PropertyGroup>
+</Project>

sdk/ai/Azure.AI.VoiceLive/samples/Directory.Build.targets

@@ -0,0 +1,14 @@
+<Project>
+
+  <PropertyGroup>
+    <TargetFrameworks Condition="'$(TargetFramework)' != ''">$(TargetFramework)</TargetFrameworks>
+  </PropertyGroup>
+
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory).., Directory.Build.targets))\Directory.Build.targets"
+          Condition="'$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory).., Directory.Build.targets))' != ''" />
+
+  <!-- Disable targets not necessary for samples -->
+  <Target Name="ValidateTargetFrameworks" />
+  <Target Name="VerifyProjectReferencesReferences" />
+
+</Project>