Log through a GameLog autoload instead of print()

GameLog.debug() prints only in debug builds, and GameLog.warning() reports
problems such as unexpected server data or failed downloads.

MusicPlayer.gd

@@ -91,7 +91,7 @@ func play_or_pause() -> void:
 		audio_player.stream_paused = false
 		song_finished = false
 		audio_player.seek(playback_position)
-		print("continue")
+		GameLog.debug("continue")
 		progress_slider.max_value = round(stream.get_length())
 		if Settings.hide_ticks:
 			progress_slider.tick_count = 0
@@ -184,7 +184,7 @@ func play_song(song: AudioStream) -> void:
 	music_time_label.text = format_text(progress_slider.value, stream.get_length())
 
 func play_song_object(song_object_no: int) -> void:
-	print("play_song_object")
+	GameLog.debug("play_song_object")
 	if audio_player.is_playing():
 		audio_player.stop()
 		await get_tree().create_timer(0.5).timeout
@@ -204,7 +204,7 @@ func play_song_object(song_object_no: int) -> void:
 	Playlist.set_currently_playing_song(song_object_no)
 	Playlist.unset_is_playing()
 	if !Settings.hide_next_track:
-		print("Show answer now!!")
+		GameLog.debug("Show answer now!!")
 		Playlist.song_is_answered(song_object_no)
 	Playlist.song_has_played(song_object_no)
 	Playlist.song_is_playing(song_object_no)
@@ -229,8 +229,8 @@ func load_mp3(_path: String) -> AudioStream:
 func play_local_song() -> void:
 	if songs:
 		local_path = songs[0]
-		print(local_path)
-		print(FileAccess.file_exists(local_path))
+		GameLog.debug(local_path)
+		GameLog.debug(FileAccess.file_exists(local_path))
 		play_sound(load_mp3(local_path))
 
 func sound_test_local() -> void: