[request feature] option to strip the output binary just like prebuildify

[bruceauyeung]

It looks like prebuildify will try to strip binary if option PREBUILD_STRIP specified.
will this feature be ported to node-gyp-build?
see:
https://github.com/prebuild/prebuildify/blob/5b2c60620daae74c8d1deb6e838d1ac7cceeac16/index.js#L242