Update json-schema version used by web3-wrapper

packages/web3-wrapper/package.json

@@ -65,6 +65,7 @@
     },
     "dependencies": {
         "@0xproject/assert": "^0.2.12",
+        "@0xproject/json-schemas": "^1.0.0",
         "@0xproject/typescript-typings": "^0.4.1",
         "@0xproject/utils": "^0.7.1",
         "ethereum-types": "^0.0.2",

yarn.lock

@@ -12689,7 +12689,7 @@ web3-typescript-typings@^0.10.2:
   dependencies:
     bignumber.js "~4.1.0"
 
-web3-utils@1.0.0-beta.34, web3-utils@^1.0.0-beta.34:
+web3-utils@1.0.0-beta.34:
   version "1.0.0-beta.34"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.0.0-beta.34.tgz#9411fc39aaef39ca4e06169f762297d9ff020970"
   dependencies:
@@ -12721,16 +12721,6 @@ web3@^0.18.0:
     xhr2 "*"
     xmlhttprequest "*"
 
-web3@^0.20.0:
-  version "0.20.6"
-  resolved "https://registry.yarnpkg.com/web3/-/web3-0.20.6.tgz#3e97306ae024fb24e10a3d75c884302562215120"
-  dependencies:
-    bignumber.js "git+https://github.com/frozeman/bignumber.js-nolookahead.git"
-    crypto-js "^3.1.4"
-    utf8 "^2.1.1"
-    xhr2 "*"
-    xmlhttprequest "*"
-
 web3@^1.0.0-beta.34:
   version "1.0.0-beta.34"
   resolved "https://registry.yarnpkg.com/web3/-/web3-1.0.0-beta.34.tgz#347e561b784098cb5563315f490479a1d91f2ab1"