Add newline

Running composeRelease.sh adds new lines in these files

Author: shepherd-l

OneSignalExample/Assets/OneSignal/Attribution/OneSignal.UnityPackage.Attribution.asmdef

@@ -21,4 +21,4 @@
         }
     ],
     "noEngineReferences": false
-}
+}

OneSignalExample/Assets/OneSignal/Editor/OneSignal.UnityPackage.Editor.asmdef

@@ -21,4 +21,4 @@
         }
     ],
     "noEngineReferences": false
-}
+}

OneSignalExample/Assets/OneSignal/Example/OneSignal.UnityPackage.Example.asmdef

@@ -23,4 +23,4 @@
         }
     ],
     "noEngineReferences": false
-}
+}

com.onesignal.unity.core/Runtime/OneSignal.cs

@@ -187,4 +187,4 @@ public static void Logout() {
             OneSignal.Default.Logout();
         }
     }
-}
+}

com.onesignal.unity.core/Runtime/OneSignalPlatform.cs

@@ -151,4 +151,4 @@ protected static void _init(string appId) {
         /// </summary>
         public abstract void Logout();
     }
-}
+}