Potential Regression. Calling EncodeMeshToDracoBuffer causes Bus Error.

Morning!

This week someone uploaded a specific gltf that seems to cause a bus error when going through `EncodeMeshToDracoBuffer` (using gltf-pipeline -- https://github.com/CesiumGS/gltf-pipeline/issues/608). The specific line is https://github.com/CesiumGS/gltf-pipeline/blob/901c94f360d60382dfbc8612c12130bc4992f10c/lib/compressDracoMeshes.js#L264 .

What's even worse is that listening to such signal (process.on('SIGBUS', ...) ) causes the whole process to hang -- still don't know why.

Here's some minimal js code that reproduces the issue. Remove the process.on('SIGBUS'...) to see the node process crash and show the bus error.
```js
const fsExtra = require("fs-extra");
const processGltf = require("./lib/processGltf");
const gltf = fsExtra.readJsonSync("./broken.gltf");
const options = {
dracoOptions: {
compressionLevel: 10,
},
};

processGltf(gltf, options).then(function (results) {
fsExtra.writeJsonSync("model-draco.gltf", results.gltf);
}, function (error){
console.log(error);
});

// not having process.on makes it crash with the bus error
process.on('SIGBUS', (signal) => {
console.log('here', signal);
})
```

Running the above script with `node --report-signal=SIGBUS --report-on-signal test.js` also makes it hang (and doesn't create a stack trace). Same for cpu profiling, etc -- they all get hanged.

If I use draco 1.3.6, before the flags NODEJS_CATCH_EXIT and NODEJS_CATCH_REJECTION are disabled, I get the error below instead (rather than bus error). Could it be a side-effect of https://github.com/google/draco/issues/629 ?
```
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
at deferUnhandledRejectionCheck (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/debuggability.js:50:9)
at Promise._ensurePossibleRejectionHandled (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/debuggability.js:70:5)
at Promise._reject (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/promise.js:694:14)
at Promise._rejectCallback (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/promise.js:509:10)
at doThenable (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:67:17)
at tryConvertToPromise (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:28:20)
at Promise._resolveCallback (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/promise.js:465:24)
at resolve (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:73:17)
at Object.Module.then (/Users/luis/workspace/Git/deteleTarget/node_modules/draco3d/draco_encoder_nodejs.js:39:40258)
at Object.tryCatcher (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/util.js:16:23)
at doThenable (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:63:38)
at tryConvertToPromise (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:28:20)
at Promise._resolveCallback (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/promise.js:465:24)
at resolve (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/thenables.js:73:17)
at Object.Module.then (/Users/luis/workspace/Git/deteleTarget/node_modules/draco3d/draco_encoder_nodejs.js:39:40258)
at Object.tryCatcher (/Users/luis/workspace/Git/deteleTarget/node_modules/bluebird/js/release/util.js:16:23)
```

[broken.gltf.zip](https://github.com/google/draco/files/11209020/broken.gltf.zip)