Define web3@1.0 types ;)

src/globals.d.ts

@@ -1,5 +1,6 @@
 /// <reference types='chai-typescript-typings' />
 /// <reference types='chai-as-promised-typescript-typings' />
+declare module 'web3_beta';
 declare module 'chai-bignumber';
 declare module 'dirty-chai';
 declare module 'request-promise-native';