Add a net48 target for tests. Removed the standalone net4 sample in f…

…avor of tests.

AssimpNet.Test/AssimpNet.Test.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFrameworks>netcoreapp3.1;net48</TargetFrameworks>
     <RootNamespace>Assimp.Test</RootNamespace>
     <LangVersion>latest</LangVersion>
     <ForceCopyNativeAssimp>true</ForceCopyNativeAssimp>

AssimpNet.sln

@@ -1,15 +1,13 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.28010.2036
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29728.190
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AssimpNet", "AssimpNet\AssimpNet.csproj", "{EAB14BD7-4180-407A-BB55-D67C9D32F9FE}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AssimpNet.Sample", "AssimpNet.Sample\AssimpNet.Sample.csproj", "{7EB942AE-787E-4E61-9C71-B868F4C2B53C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssimpNet.Test", "AssimpNet.Test\AssimpNet.Test.csproj", "{5C5206C9-691B-4C17-B4E1-E34F40AAC1D3}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AssimpNet.Net4Sample", "AssimpNet.Net4Sample\AssimpNet.Net4Sample.csproj", "{B92E2B5D-5D3A-4ED2-9F7F-5C51EB71065C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AssimpNet.Test", "AssimpNet.Test\AssimpNet.Test.csproj", "{5C5206C9-691B-4C17-B4E1-E34F40AAC1D3}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -29,10 +27,6 @@ Global
 		{5C5206C9-691B-4C17-B4E1-E34F40AAC1D3}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5C5206C9-691B-4C17-B4E1-E34F40AAC1D3}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5C5206C9-691B-4C17-B4E1-E34F40AAC1D3}.Release|Any CPU.Build.0 = Release|Any CPU
-		{B92E2B5D-5D3A-4ED2-9F7F-5C51EB71065C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{B92E2B5D-5D3A-4ED2-9F7F-5C51EB71065C}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{B92E2B5D-5D3A-4ED2-9F7F-5C51EB71065C}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{B92E2B5D-5D3A-4ED2-9F7F-5C51EB71065C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE