* Update all package.json and tsconfig.json
* fix(contracts): Make test/utils/web3_wrapper.ts compatible with project refs
* Fix webpack config for 0x.js
* Fix linter errors by adding rootDir to tsconfig.json as needed
* Add build:ts and watch:ts commands to package.json
* Update sra-spec to work with project references
* Update tsconfig.json with latest new/removed packages
* Add TypeScript as devDependency at root
* Add missing rootDir to forwarder-helper package
* Use a separate tsconfig file for typedoc
* Fix linter errors
* Apply PR feedback (add comments)
* Fix 0x.js tsconfig
