feat: Add support for TypeScript project references (#991)

* 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

packages/sol-resolver/package.json

@@ -8,8 +8,7 @@
     "main": "lib/index.js",
     "types": "lib/index.d.ts",
     "scripts": {
-        "watch_without_deps": "tsc -w",
-        "build": "tsc",
+        "build": "tsc -b",
         "clean": "shx rm -rf lib",
         "lint": "tslint --project ."
     },