removes axios-cookiejar-support. See issue#295

[glynnbird]

Overview

Removes axios-cookiejar-support and replaces it with http-cookie-agent, which is basically the same logic but it works with our custom http/https agents.

This means that

• issue #295 gets fixed - we no longer need to pull in the latest axios-cookiejar-support
• issue #264 goes away

Testing recommendations

• npm run test all passes
• I manually checked that Nano stores and replays cookies sent to it from the server

GitHub issue number

Fixes issue #295

Checklist

• [x] Code is written and works correctly;
• [x] Changes are covered by tests;
• [x] Documentation reflects the changes;