added constructor for struct CheckInfo in bitboard::checkinfo.rs

engine/src/bitboard/checkinfo.rs

@@ -2,4 +2,14 @@
 pub struct CheckInfo {
   pub check_count: u8,
   pub move_mask: u64
+}
+
+impl CheckInfo {
+
+  pub fn new() -> Self {
+    return Self {
+      check_count: 0,
+      move_mask: 0xFFFF_FFFF_FFFF_FFFF
+    }
+  }
 }