feat(wip): GameUnitConstraint 개념 추가

hwe/sammo/GameUnitConstraint/GameUnitConstraint.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace sammo\GameUnitConstraint;
+
+use sammo\General;
+use sammo\KVStorage;
+
+abstract class GameUnitConstraint {
+    private function __construct()
+    {
+    }
+
+    public abstract function test(General $general, KVStorage $env): bool;
+}