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

addons/escoria-ui-simplemouse/game.gd

@@ -27,6 +27,11 @@ Implement methods to react to inputs.
 - hide_ui()
 - show_ui()
 
+- pause_game()
+- unpause_game()
+- show_main_menu()
+- hide_main_menu()
+
 - _on_event_done(event_name: String)
 """
 
@@ -171,18 +176,27 @@ func _on_event_done(event_name: String):
 	escoria.action_manager.clear_current_action()
 	$CanvasLayer/ui/HBoxContainer/verbs_menu.clear_tool_texture()
 
+func hide_main_menu():
+	if get_node(main_menu).visible:
+		 get_node(main_menu).hide()
 
-func pause_game():
-	if $CanvasLayer/pause_menu.visible:
-		$CanvasLayer/pause_menu.hide()
+func show_main_menu():
+	if not get_node(main_menu).visible:
+		 get_node(main_menu).show()
+
+func unpause_game():
+	if get_node(pause_menu).visible:
+		get_node(pause_menu).hide()
 		escoria.object_manager.get_object("_camera").node.current = true
 		escoria.main.current_scene.game.show_ui()
 		escoria.main.current_scene.show()
-	else:
-		$CanvasLayer/pause_menu.set_save_enabled(
+
+func pause_game():
+	if not get_node(pause_menu).visible:
+		get_node(pause_menu).set_save_enabled(
 			escoria.save_manager.save_enabled
 		)
-		$CanvasLayer/pause_menu.show()
+		get_node(pause_menu).show()
 		escoria.object_manager.get_object("_camera").node.current = false
 		escoria.main.current_scene.game.hide_ui()
 		escoria.main.current_scene.hide()