**Is your feature request related to a problem? Please describe.**
It's frustrating there's no option to turn off decompress. There are situations where you want to do this. Ex: having a service that collects data, but doesn't analyze it. which then passes to another service immediately/eventually.

While data is waiting or in traffic to next stop, it should stay compressed. The difference in byte size is huge (for me, 60MB vs 1-2MB). 

**Describe the solution you'd like**
Add an option to the request to not automatically decompress for me. I'm a big boy, I can handle it myself later.

**Describe alternatives you've considered**
There are none except user another lib or write own http req (which is ridiculous just to turn off a auto feature).


I can submit a PR if no one else wants to do it (it's not hard to add). But let me know how you'd like the option to be passed in? An extra options key? `axios({ url: ..., method: ..., decompress: false })` , or adding option to an existing option?


test/unit/adapters/http.js
var http = require('http');
var net = require('net');
var url = require('url');
var zlib = require('zlib');
var assert = require('assert');
var fs = require('fs');
var path = require('path');
var server, proxy;
describe('supports http with nodejs', function () {
  afterEach(function () {
    if (server) {
      server.close();
      server = null;
    }
    if (proxy) {
      proxy.close()
      proxy = null;
    }
    if (process.env.http_proxy) {
      delete process.env.http_proxy;
    }
    if (process.env.no_proxy) {
      delete process.env.no_proxy;
    }
  });
  it('should respect the timeout property', function (done) {
    server = http.createServer(function (req, res) {
      setTimeout(function () {
        res.end();
      }, 1000);