Flatbuffers Merge commit '8cd6f0538a362ceefbcfcbf6c7b8b3f341d1fb41' into master

Upgrade flatbuffers to the latest.

Change-Id: I901787ac6fc5d7ce2c4019cc0d275de68086b4d8
diff --git a/third_party/flatbuffers/js/utils.js b/third_party/flatbuffers/js/utils.js
new file mode 100644
index 0000000..1ed60d2
--- /dev/null
+++ b/third_party/flatbuffers/js/utils.js
@@ -0,0 +1,7 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isLittleEndian = exports.float64 = exports.float32 = exports.int32 = void 0;
+exports.int32 = new Int32Array(2);
+exports.float32 = new Float32Array(exports.int32.buffer);
+exports.float64 = new Float64Array(exports.int32.buffer);
+exports.isLittleEndian = new Uint16Array(new Uint8Array([1, 0]).buffer)[0] === 1;