Dotnet fix (#133)

* Add template for old test project

Modify script

* Update submodule

Author: ivankamkin

codegen/Templates/csharp/appveyor.mustache

@@ -0,0 +1,25 @@
+{{! Used as NetFrameworkTests/Aspose.BarCode.Cloud.Sdk.NetFrameworkTests.csproj }}
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <TargetFrameworks>net462;net480;net481</TargetFrameworks>
+        <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+        <IsTestProject>true</IsTestProject>
+        <LangVersion>8.0</LangVersion>
+    </PropertyGroup>
+    <ItemGroup>
+        <Compile Remove="TestResults\**"/>
+        <EmbeddedResource Remove="TestResults\**"/>
+        <None Remove="TestResults\**"/>
+    </ItemGroup>
+    <ItemGroup>
+        <PackageReference Include="Moq" Version="4.20.70"/>
+        <PackageReference Include="NUnit" Version="3.14.0"/>
+        <PackageReference Include="NUnit3TestAdapter" Version="4.5.0"/>
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0"/>
+        <PackageReference Include="System.Net.Http" Version="4.3.4"/>
+    </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Aspose.BarCode-Cloud" Version="{{packageVersion}}" />
+  </ItemGroup>
+</Project>

codegen/generate-dotnet.bash

@@ -48,6 +48,7 @@ cp "$tempDir/src/Aspose.BarCode.Cloud.Sdk.Test/Aspose.BarCode.Cloud.Sdk.Test.csp
 cp "$tempDir/src/Aspose.BarCode.Cloud.Sdk.Test/Aspose.BarCode.Cloud.Sdk.Test.csproj" "$targetDir/examples/GenerateQR/GenerateQR.csproj"
 mv "$tempDir/src/Aspose.BarCode.Cloud.Sdk.Test/Aspose.BarCode.Cloud.Sdk.Test.csproj" "$targetDir/examples/ReadQR/ReadQR.csproj"
 
+mv "$tempDir/appveyor.yml" "$targetDir/NetFrameworkTests/Aspose.BarCode.Cloud.Sdk.NetFrameworkTests.csproj"
 mv "$tempDir/git_push.sh" "$targetDir/snippets/dependency.xml"
 
 rm -rf $tempDir