Simplifying, updating nuget packages, and adding string extensions

Author: codepb

samples/library/DDDToolkit.Samples.Library.Domain/DDDToolkit.Samples.Library.Domain.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
   </ItemGroup>
 
   <ItemGroup>

samples/library/DDDToolkit.Samples.Library.Repository.Sql/DDDToolkit.Samples.Library.Repository.Sql.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.2.2" />
   </ItemGroup>
 
   <ItemGroup>

samples/library/DDDToolkit.Samples.Library.UI.Web/DDDToolkit.Samples.Library.UI.Web.csproj

@@ -1,14 +1,14 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
     <TypeScriptCompileBlocked>true</TypeScriptCompileBlocked>
     <TypeScriptToolsVersion>Latest</TypeScriptToolsVersion>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.All" />
   </ItemGroup>
 
   <ItemGroup>