Deleted ESCHotspot (use ESCItem instead)

Moved duplicated movement code from ESCPlayer and ESCItem/ESCHotspot to its own script.
Added talking animations management.
Fixed bug: character was turning to last_direction after talking, if coming from another direction than speaking direction.
Continued removing unfree stuff.

addons/escoria-core/game/scenes/dialogs/dialog_player.gd

@@ -48,6 +48,7 @@ func say(character : String, params : Dictionary):
 	dialog_ui = get_resource(params.ui).instance()
 	get_parent().add_child(dialog_ui)
 	dialog_ui.say(character, params)
+	
 
 func finish_fast():
 	dialog_ui.finish_fast()