added parameterless constructor for struct BoardSquare

engine/src/boardsquare.rs

@@ -2,4 +2,14 @@
 pub struct BoardSquare {
   pub x: usize,
   pub y: usize
+}
+
+impl BoardSquare {
+
+  pub fn new() -> Self {
+    return Self{
+      x: 0,
+      y: 0
+    };
+  }
 }