Event flags implementation (#382)

* Added event flags
* Added transition ESC command
* Also edited .gitignore to ignore .translation files
* docs: Automatic update of API docs

Co-authored-by: StraToN <StraToN@users.noreply.github.com>

game/rooms/room11/background.tscn

@@ -0,0 +1,30 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://addons/escoria-core/game/core-scripts/esc_background.gd" type="Script" id=1]
+
+[node name="background" type="TextureRect"]
+margin_right = 1289.0
+margin_bottom = 555.0
+mouse_filter = 2
+script = ExtResource( 1 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="l_platform" type="Line2D" parent="."]
+position = Vector2( 2, -266 )
+points = PoolVector2Array( -2.96298, 712.01, 129.973, 614.429, 1167.5, 612.894, 1274.59, 669.705, 1273.25, 812.694, 2.36697, 811.043, 2.36697, 713.389 )
+
+[node name="l_door" type="Line2D" parent="."]
+position = Vector2( 0, -266 )
+points = PoolVector2Array( 6.61201, 704.409, 6.61203, 389.558, 87.755, 339.775, 87.5463, 649.784 )
+__meta__ = {
+"_editor_description_": ""
+}
+
+[node name="r_door" type="Line2D" parent="."]
+position = Vector2( 0, -267.828 )
+points = PoolVector2Array( 1175.07, 620.086, 1171.24, 311.267, 1274.8, 356.87, 1278.31, 672.412, 1188.64, 624.843 )
+__meta__ = {
+"_editor_description_": ""
+}