Add process.shared

[TooTallNate]

This adds a process.shared object, which looks a little something like this:

> process.shared
{ http_parser: false,
  v8: false,
  uv: false,
  zlib: true,
  openssl: true }

For the node running above ^, I compiled with --shared-zlib --openssl-use-sys=1, and thus zlib and openssl are "true" above.

[TooTallNate]

Closing. We want process.config instead!!!