added winning determination algorithm (not entirely working yet)

elements/play.gd

@@ -0,0 +1,14 @@
+class_name Play
+extends Resource
+
+## Card - player association
+
+@export var client_id: String
+@export var card_id: int
+
+func _init(
+	client_id: String,
+	card_id: int,
+) -> void:
+	self.client_id = client_id
+	self.card_id = card_id