com.unity.ide.visualstudio@2.0.1

## [2.0.1] - 2020-03-19

When Visual Studio installation is compatible with C# 8.0, setup the language version to not prompt the user with unsupported constructs. (So far Unity only supports C# 7.3).
Use Unity's TypeCache to improve project generation speed.
Properly check for a managed assembly before displaying a warning regarding legacy PDB usage.
Add support for selective project generation (embedded, local, registry, git, builtin, player).

Editor/ProjectGeneration/FileIOProvider.cs

@@ -0,0 +1,31 @@
+using System.IO;
+using System.Text;
+
+namespace Microsoft.Unity.VisualStudio.Editor
+{
+    public interface IFileIO
+    {
+        bool Exists(string fileName);
+
+        string ReadAllText(string fileName);
+        void WriteAllText(string fileName, string content);
+    }
+
+    class FileIOProvider : IFileIO
+    {
+        public bool Exists(string fileName)
+        {
+            return File.Exists(fileName);
+        }
+
+        public string ReadAllText(string fileName)
+        {
+            return File.ReadAllText(fileName);
+        }
+
+        public void WriteAllText(string fileName, string content)
+        {
+            File.WriteAllText(fileName, content, Encoding.UTF8);
+        }
+    }
+}