Move all dependencies on @0xproject/types out of devDependencies

packages/utils/package.json

@@ -21,7 +21,6 @@
     "homepage": "https://github.com/0xProject/0x.js/packages/utils/README.md",
     "devDependencies": {
         "@0xproject/tslint-config": "^0.4.9",
-        "@0xproject/types": "^0.2.3",
         "@types/lodash": "^4.14.86",
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
@@ -30,6 +29,7 @@
         "web3-typescript-typings": "^0.9.11"
     },
     "dependencies": {
+        "@0xproject/types": "^0.2.3",
         "bignumber.js": "~4.1.0",
         "js-sha3": "^0.7.0",
         "lodash": "^4.17.4",