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

saves/save_001.tres

@@ -6,8 +6,8 @@
 script = ExtResource( 1 )
 escoria_version = "0.1.0"
 game_version = "0.1.0"
-name = "3"
-date = "11/08/2021 21:14"
+name = "Testtt1"
+date = "04/11/2021 22:13"
 main = {
 "current_scene_filename": "res://game/rooms/room01/room01.tscn",
 "last_scene_global_id": ""
@@ -18,24 +18,29 @@ globals = {
 "room1_visited": true
 }
 objects = {
-"bg_music": {
-"active": true,
-"interactive": true,
-"state": "res://game/sfx/contemplation.ogg"
-},
-"bg_sound": {
+"_camera": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
-"camera": {
+"_music": {
+"active": true,
+"interactive": true,
+"state": "res://game/sfx/contemplation.ogg"
+},
+"_sound": {
+"active": true,
+"interactive": true,
+"state": "default"
+},
+"_speech": {
 "active": true,
 "interactive": true,
 "state": "default"
 },
 "player": {
 "active": true,
-"global_transform": Transform2D( 1, 0, 0, 1, 621.898, 479.227 ),
+"global_transform": Transform2D( 1, 0, 0, 1, 399, 480 ),
 "interactive": true,
 "last_deg": 71,
 "last_dir": 2,
@@ -56,7 +61,7 @@ objects = {
 "interactive": true,
 "state": "default"
 },
-"r1_left_object_interaction": {
+"r1_destination_point3": {
 "active": true,
 "interactive": true,
 "state": "default"
@@ -81,7 +86,7 @@ objects = {
 "interactive": true,
 "state": "default"
 },
-"r2_left_object_interaction": {
+"trigger_talk": {
 "active": true,
 "interactive": true,
 "state": "default"