Add link.xml for stable unit testing.

Author: yfakariya

test/MsgPack.UnitTest.Unity.Il2cpp.Full.Desktop/MakeAssets.ps1

@@ -68,3 +68,4 @@ foreach($c in $csproj.Project.ItemGroup.Compile)
 
 New-Item ./Assets/Dll -ItemType Directory | Out-Null
 Copy-Item ./bin/Debug/MsgPack.dll ./Assets/Dll/MsgPack.dll -Force
+Copy-Item ./link.xml ./Assets/link.xml -Force

test/MsgPack.UnitTest.Unity.Il2cpp.Full.Desktop/link.xml

@@ -0,0 +1,7 @@
+<linker>
+  <assembly fullname="System.Runtime.Serialization">
+    <type fullname="System.Runtime.Serialization.DataContractAttribute" preserve="all" />
+    <type fullname="System.Runtime.Serialization.DataMemberAttribute" preserve="all" />
+  </assembly>
+</linker>
+

test/MsgPack.UnitTest.Unity.Il2cpp.Full/Readme.md

@@ -29,6 +29,7 @@ pwsh ./MakeAssets.ps1
 5. Open this folder with Unity.
 6. Import `../MsgPack.UnitTest.Unity.Il2cpp.Full.Desktop/Assets/Dll` directory into `Assets` of Unity project with Unity Editor.
 7. Import `../MsgPack.UnitTest.Unity.Il2cpp.Full.Desktop/Assets/UnitTests` directory into `Assets` of Unity project with Unity Editor.
+8. Import `../MsgPack.UnitTest.Unity.Il2cpp.Full.Desktop/Assets/link.xml` file into `Assets` of Unity project with Unity Editor.
 
 How to run
 ---