Stockfish.js browser engine provenance

Package: stockfish 18.0.8
Registry: https://www.npmjs.com/package/stockfish/v/18.0.8
Tarball: https://registry.npmjs.org/stockfish/-/stockfish-18.0.8.tgz
Tarball integrity: sha512-z+f2UMPXLylDBGjv9e9zU8QulY7hUl8MYHesLRrdddewlOXjJrUSmtNmbtID1/F72EPhq0CCkCNxgWS5MQVWtQ==
Upstream source: https://github.com/nmrugg/stockfish.js/tree/93c994592dcf3b4b21052ab925e9b534df9c0918
Upstream Stockfish source: https://github.com/official-stockfish/Stockfish
License: GNU General Public License version 3; see stockfish-COPYING.txt

Distributed upstream files:
- stockfish-18-lite-single.js
  SHA-256: 5243fd9b276cab7dfe3ad1d43ab9ead73568fac76468c614242977a210c4a391
- stockfish-18-lite-single.wasm
  SHA-256: a8fbc05ec6920b56d7485826dcb02c5ffd2826bcbf751cf973046f237a9096f1

The two Stockfish runtime files are copied without modification from the
package above. stockfish_bridge.js is NN_C integration code and is not part of
the upstream Stockfish.js distribution.