Feature request: multiple installed bindings

[cscott]

There's token support for loading different bindings based on architecture and node version, but it would be nice to see more robust support for node-sqlite3-style binding build/install. In particular:

• add the lib/binding/Release/<arch and version string>/foo.node path style used by node-sqlite3
• add a default build script along the lines of node-sqlite3's "build.js" so this doesn't have to be cut-and-pasted into every module.

[sindresorhus]

👍