Launches the Avatar Editor. Meta Avatars Editor is a feature that allows users to edit their Meta Avatars appearances within the VR application that they are currently using. This experience is often used by users to switch their outfit and accessories to better suit the VR experience they are experiencing. The result can be retrieved by ovr_AvatarEditorResult_GetRequestSent(). A message with type ovrMessage_Avatar_LaunchAvatarEditor will be generated in response.First call ovr_Message_IsError() to check if an error occurred.If no error occurred, the message will contain a payload of type ovrAvatarEditorResultHandle. Extract the payload from the message handle with ovr_Message_GetAvatarEditorResult().