Fix FP64 detection on Node-WebCL
Fix FP64 detection on Node-WebCL

hpcgarage/furious.js,faizanv/furious.js,faizanv/furious.js,beni55/furious.js,hpcgarage/furious.js,beni55/furious.js,hpcgarage/furious.js,faizanv/furious.js,beni55/furious.js,hpcgarage/furious.js,beni55/furious.js,faizanv/furious.js