first commit

Packages/com.singularitygroup.hotreload/Editor/ProjectGeneration/IFileIO.cs

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+namespace SingularityGroup.HotReload.Editor.ProjectGeneration
+{
+  internal interface IFileIO
+  {
+    bool Exists(string fileName);
+
+    string ReadAllText(string fileName);
+    void WriteAllText(string path, string content);
+
+    string EscapedRelativePathFor(string file, string projectDirectory);
+  }
+}