Work happening in branch v3

Overhaul of deprecated APIs, repo structure, npm packages, etc

Repo organisation

• Rename master to main
• Remove volta
• Workspaces
  • Make mappersmith/test a separate package
  • Make each bundled middleware a separate package

Release

• Stop bundling prebuilt web
  • kill webpack
  • kill build:browser

Deprecations

• Kill all deprecated code
  • middlewares
  • Context, setContext
  • Options
  • request

Legacy

• Get rid of Promise as a configurable