Error when loading non-UTF-8-encoded parameter names

[helgoboss]

E.g. when loading parameters for "JS: Stereo Width", we get: Message: REAPER string should be UTF-8 encoded: Utf8Error { valid_up_to: 16, error_len: Some(1) }

Solution:

• ReaLearn will use replacement characters in such cases instead of complaining.
• This particular JS effect will be fixed on REAPER dev side.