sound toggle
Merge branch 'master' of https://github.com/j4cksw/chickrunner

# By Jack Swallow
# Via Jack Swallow
* 'master' of https://github.com/j4cksw/chickrunner: (48 commits)
  Add evaluating toggle_sound at main
  Extracte toggling soun create_sound_toggle_button to module toggle_sound
  Move toggle_sound to scene.game.audio
  Add negative test cases to toggle_sound
  Add should not call mute_all_channel when given true in toggle_sound module
  Set given sound_state to options table
  Save options table when finished unmute audio
  Add unmute when given sound_state = true in toggle_sound
  Addd function 'evaluate' to toggle_sound
  Fixed frame number of on/off in sound toggle
  Add module toggle_sound
  Add toggle_sound_spec
  Add evaluate saving options table to the file
  Add function 'evaluate' to save_options
  Add test case to save_options_spec
  Add module save_options
  Add save_options_spec
  Fixed renaming modules
  Rename save_game_stat_file to save_game_stat
  Fixed missing require in file_saver
  ...