npm publish prebuild

[drom]

node-circt bindings need to be published on npm to be useful as JS component.
Typically Native C/C++ addons published on npm as the source code and then compiled during installation on a specific platform CPU (x86, ARM); OS (Linux, OSX, Windows (32, 64-bit), JS runtime type / version(Browser, NodeJS, Electron, NWJS).

In the case of LLVM/MLIR/CIRCT, it would be hard/slow to publish or bring all source code during module installation.
We should think about publishing precompiled binaries using one of NodeJS recommended ways:
https://nodejs.org/api/n-api.html#n_api_uploading_precompiled_binaries