Thoughts on replacing 'request' library

[cktang88]

It seems the only place the request library is used is in lib/install.js, where it's only used for a simple task.
The request library is 52 packages, which take up around 4.22 MB, which seems unjustified for the small one-time usage that it gets included for. Would a PR be welcome to replace it with a lightweight alternative, such as isomorphic-fetch or simple-get or something similar?

[LinusU]

ping @springmeyer

Would love to see this happen! I would also be available to help whip up a PR if needed 👍

[dragonfire535]

Might I recommend snekfetch too? No dependencies at all and very fast.

[springmeyer]

@cktang88 @LinusU @dragonfire535 - I would love to shrink the size of node-pre-gyp. I would welcome a PR that moves to something smaller, as long as the tests still pass.