Fix project and solution files

Author: abeham

src/SimSharp.sln

@@ -9,7 +9,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
 		..\appveyor.yml = ..\appveyor.yml
-		..\LICENSE-3RD-PARTY.txt = ..\LICENSE-3RD-PARTY.txt
 		..\LICENSE.txt = ..\LICENSE.txt
 		..\README.md = ..\README.md
 	EndProjectSection

src/SimSharp/SimSharp.csproj

@@ -79,7 +79,6 @@ SimPy allows modeling processes easily and with little boiler plate code. A proc
 
   <ItemGroup>
     <None Include="$(SolutionDir)..\LICENSE.txt" Link="LICENSE.txt" Pack="true" />
-    <None Include="$(SolutionDir)..\LICENSE-3RD-PARTY.txt" Link="LICENSE-3RD-PARTY.txt" Pack="true" />
   </ItemGroup>
 
   <ItemGroup>

src/Tests/Tests.csproj

@@ -27,7 +27,7 @@
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
       <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
   </ItemGroup>
 </Project>