Attempt to using Nakama as replacement of Low-Level ENet

addons/com.heroiclabs.nakama/utils/NakamaAsyncResult.gd

@@ -0,0 +1,34 @@
+extends RefCounted
+class_name NakamaAsyncResult
+
+var exception : NakamaException:
+	set(v):
+		pass
+	get:
+		return get_exception()
+
+var _ex = null
+
+func _init(p_ex = null):
+	_ex = p_ex
+
+func is_exception():
+	return get_exception() != null
+
+func was_cancelled():
+	return is_exception() and get_exception().cancelled
+
+func get_exception() -> NakamaException:
+	return _ex as NakamaException
+
+func _to_string():
+	if is_exception():
+		return get_exception()._to_string()
+	return "NakamaAsyncResult<>"
+
+static func _safe_ret(p_obj, p_type : GDScript):
+	if is_instance_of(p_obj, p_type):
+		return p_obj # Correct type
+	elif p_obj is NakamaException:
+		return p_type.new(p_obj) # It's an exception. Incapsulate it
+	return p_type.new(NakamaException.new()) # It's something else. generate an exception