Codegen line endings (#1189)

* Have the code generator fix up the line endings after generations

* Internal changelog

Author: zeroZshadow

CHANGELOG.md

@@ -22,6 +22,7 @@
 ### Internal
 
 - Added the `IComponentMetaclass` and `ICommandMetaclass` interfaces. Where we previously would use reflection to find instances of various component/command related types, we now lookup through generated metaclasses. [#1173](https://github.com/spatialos/gdk-for-unity/pull/1173)
+- Code Generator now enforces platform line endings. [#1189](https://github.com/spatialos/gdk-for-unity/pull/1189)
 
 ## `0.2.9` - 2019-09-16
 

workers/unity/Packages/io.improbable.gdk.tools/.CodeGenTemplate/CodeGenerationLib/Jobs/CodegenJob.cs

@@ -62,7 +62,12 @@ public void Run()
                     fileSystem.CreateDirectory(fileInfo.DirectoryPath);
                 }
 
-                fileSystem.WriteToFile(fileInfo.CompletePath, entry.Value);
+                // Fix up line endings
+                var contents = entry.Value
+                    .Replace("\r\n", "\n")
+                    .Replace("\n", Environment.NewLine);
+
+                fileSystem.WriteToFile(fileInfo.CompletePath, contents);
             }
         }