remove xml doc warning

Author: mythz

src/ServiceStack.Text/ServiceStack.Text.Core.csproj

@@ -12,6 +12,7 @@
       https://github.com/ServiceStack/ServiceStack.Text
     </PackageDescription>
     <PackageTags>JSON;Text;Serializer;CSV;JSV;HTTP;Auto Mapping;Dump;Reflection;JS;Utils;Fast</PackageTags>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">
     <DefineConstants>$(DefineConstants);NETCORE;NETCORE2_1</DefineConstants>

src/ServiceStack.Text/ServiceStack.Text.csproj

@@ -10,6 +10,7 @@
       https://github.com/ServiceStack/ServiceStack.Text
     </PackageDescription>
     <PackageTags>JSON;Text;Serializer;CSV;JSV;HTTP;Auto Mapping;Dump;Reflection;JS;Utils;Fast</PackageTags>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">
     <DefineConstants>$(DefineConstants);NETCORE;NETCORE2_1</DefineConstants>

tests/ServiceStack.Text.Tests/ServiceStack.Text.Tests.csproj

@@ -14,6 +14,7 @@
     <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
     <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
     <LangVersion>latest</LangVersion>
+    <NoWarn>1591</NoWarn>
   </PropertyGroup>
   <PropertyGroup>
     <DebugType Condition="'$(TargetFramework)' != '' AND '$(TargetFramework)' != 'net6.0'">Full</DebugType>