/// <summary>Play a SFX file by key on the SFX AudioSource.</summary>
 public void PlaySFX(AudioManagerKeys key)
 {
     PlaySFX(key.ToString());
 }
 /// <summary>Play a SFX file by key on the SFX AudioSource.</summary>
 public void PlayMusic(AudioManagerKeys key)
 {
     PlayMusic(key.ToString());
 }