Remove warnings as errors for vulnerabilities

Author: MichelZ

src/Directory.Build.props

@@ -64,6 +64,7 @@
     <NuGetCmd>$(NuGetRoot)nuget.exe</NuGetCmd>
     <!-- Respect environment variable for the .NET install directory if set; otherwise, use the current default location -->
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <WarningsNotAsErrors>$(WarningsNotAsErrors);NU1901;NU1902;NU1903;NU1904;NU1905</WarningsNotAsErrors>
     <BuildSimulator Condition="'$(BuildSimulator)' != 'true'">false</BuildSimulator>
   </PropertyGroup>
   <PropertyGroup Condition="'$(BuildSimulator)' == 'true'">