Update yarn.lock and add script

package.json

@@ -10,6 +10,7 @@
   "scripts": {
     "test": "lerna run test",
     "build": "lerna run build",
+    "yarn-install": "for d in ./packages/*/ ; do (cd \"$d\" && yarn install); done;",
     "lint": "lerna run lint",
     "publish": "lerna publish from-package --yes"
   },

yarn.lock

@@ -6304,11 +6304,6 @@ rimraf@^3.0.0, rimraf@^3.0.2:
   dependencies:
     glob "^7.1.3"
 
-rollup-plugin-consts@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-consts/-/rollup-plugin-consts-1.0.2.tgz#b02906ee288929e92119d55ab4d423551675aeda"
-  integrity sha512-vsy9uyIGTXHsVVlD6c2f43xgiQQYRWY29ycC3ezewxc9AHySjQh5Oi3NEX/9c4OnRnnxe+PMwOtvYBMyP0993Q==
-
 rollup-plugin-copy@^3.1.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-copy/-/rollup-plugin-copy-3.3.0.tgz#5ba230047f86b9f703a29288f242948a5580e7b9"