fix: fix investments with stable coins on TieredSTO

Updates contract-wrappers package fixing a bug with decimals places on StableCoins tokens

Author: VictorVicente

package.json

@@ -53,13 +53,14 @@
     "@0x/subproviders": "^3.0.2",
     "@babel/polyfill": "^7.0.0",
     "@babel/runtime": "^7.2.0",
-    "@polymathnetwork/contract-wrappers": "3.0.0-beta.61",
+    "@polymathnetwork/contract-wrappers": "3.0.0",
     "@types/sinon": "^7.5.0",
     "bluebird": "^3.5.5",
     "ethereum-address": "^0.0.4",
     "json-stable-stringify": "^1.0.1",
     "lodash": "^4.17.13",
     "phin": "^3.4.0",
+    "rimraf": "^3.0.2",
     "semantic-release-cli": "^5.1.1",
     "semver": "^5.6.0",
     "uuid": "^3.3.2"
@@ -106,7 +107,6 @@
     "prettier-eslint-cli": "^4.7.1",
     "reflect-metadata": "^0.1.12",
     "regenerator-runtime": "^0.13.1",
-    "rimraf": "^3.0.2",
     "semantic-release": "^16.0.0-beta.18",
     "sinon": "^7.5.0",
     "ts-loader": "^5.3.3",

yarn.lock

@@ -1335,10 +1335,10 @@
     lodash "^4.17.15"
     typescript "3.5.3"
 
-"@polymathnetwork/contract-wrappers@3.0.0-beta.61":
-  version "3.0.0-beta.61"
-  resolved "https://registry.yarnpkg.com/@polymathnetwork/contract-wrappers/-/contract-wrappers-3.0.0-beta.61.tgz#60876136e5654669ae05c891e7aadd27871a5432"
-  integrity sha512-0wQN9xyLV6WF7Fls8v1/kZ2uiGYbRJgl25eJ+/3lSw1rjTYtHqGE3iUuEmqJckdMRZt/V2yGOy7J6CKNY+2Sww==
+"@polymathnetwork/contract-wrappers@3.0.0":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/@polymathnetwork/contract-wrappers/-/contract-wrappers-3.0.0.tgz#d9fc46dfbf7b84b65a8c8aee0986fa5d1a41e16f"
+  integrity sha512-u+tFlpcEydbnBa1PfJCdAxdhqS6YIbHDRGO4knbcV3JO2A3plEn79qqDMOhoBD2R7jzWTgeTJK6e0YODEDBx5w==
   dependencies:
     "@0x/assert" "2.1.6"
     "@0x/json-schemas" "4.0.2"