Initial data commit

Task/Inheritance-Multiple/Fantom/inheritance-multiple.fantom

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+// a regular class
+class Camera
+{
+  Str cameraMsg ()
+  {
+    "camera"
+  }
+}
+
+// a mixin can only contain methods
+mixin MobilePhone
+{
+  Str mobileMsg ()
+  {
+    "mobile phone"
+  }
+}
+
+// class inherits from Camera, and mixes in the methods from MobilePhone
+class CameraPhone : Camera, MobilePhone
+{
+}
+
+class Main
+{
+  public static Void main ()
+  {
+    cp := CameraPhone ()
+    echo (cp.cameraMsg)
+    echo (cp.mobileMsg)
+  }
+}