mode names may be upper case

mpf/core/mode.py

@@ -48,7 +48,7 @@ def __init__(self, machine: "MachineController", config, name: str, path) -> Non
         super().__init__()
         self.machine = machine                  # type: MachineController
         self.config = config                    # type: ignore
-        self.name = name.lower()
+        self.name = name
         self.path = path
         self.priority = 0
         self._active = False