Add show_menu and hide_menu ESC commands

Fixes godot-escoria/escoria-issues#48
Fix: tween was stopped_all before starting


Fix: reload locale from settings in ESCGame

Since main menu and pause menu are now loaded from ESCGame and not from escoria.gd, this must be done here.
Fix: small crash in load game

But save and load are broken at the moment...
Fix: check save and load after main menu changes


Required fixes


Fix: manage the game scene better in show and hide_menu


Enh: transition back in to the previous room if there was one


Fix a bug occurring where change_scene awaits forever for setup to end


Reworked change_scene and esc_room implementation to avoid yielding


Added a controller variable to allow new event run in events_manager


Don't empty the events queue if the running_event was interrupted


Fixed transitions and automatic transitions in change_scene

Added trace log level (for esc_compiler in particular)
Fixed various bugs in ESC scripts
Fix a bug where exit_scene happened multiple times where fast walking

Needed to clear the event queue
Fixes ready event was run because BYPASS_LAST_SCENE wrongly set


Inverted parameter "disable_automatic_transitions"

for change_scene, hide_menu, show_menu commands
Fix broken sched_event


Fixes as requested in PR

game/start_game.esc

@@ -1,15 +1,14 @@
 :init
 
 set_sound_state _music res://game/sfx/Game-Menu_Looping.mp3 true
-spawn _main_menu res://addons/escoria-core/ui_library/menus/main_menu/main_menu.tscn false
-set_active _main_menu true
+
+# Showing main menu with automatic transition DISABLED
+show_menu main
+
 
 
 :newgame
 
-# Hide main menu
-set_active _main_menu false
-
 # 1/ Simple scene
 change_scene res://game/rooms/room01/room01.tscn
 
@@ -47,4 +46,9 @@ change_scene res://game/rooms/room01/room01.tscn
 # 12/ Event flags tests 2
 #change_scene res://game/rooms/room12/room12.tscn
 
+# 13/ 
+#change_scene res://game/rooms/room13/room13.tscn
+
+# 14/ 
+#change_scene res://game/rooms/room14/room14.tscn