Add Entity.getRef function

src/entity.zig

@@ -302,10 +302,13 @@ pub fn Entity(comptime ctx: anytype) type {
         }
 
         pub fn get(self: Self, comptime T: type) ?T {
+            return if (getRef(self, T)) |p| p.* else null;
+        }
+
+        pub fn getRef(self: Self, comptime T: type) ?*const T {
             const id = Context.lookup(T).*;
             const ptr = c.ecs_get_id(self.world.raw, self.raw, id);
-            const typed_ptr: ?*const T = @alignCast(@ptrCast(ptr));
-            return if (typed_ptr) |p| p.* else null;
+            return @alignCast(@ptrCast(ptr));
         }
 
         pub fn getMut(self: Self, comptime T: type) ?*T {