Add clean:lib script

Author: hbcarlos

package.json

@@ -26,6 +26,7 @@
     "build": "lerna run --stream build",
     "build:prod": "lerna run --stream build:prod",
     "clean": "lerna run --stream clean",
+    "clean:lib": "lerna --stream run clean:lib",
     "clean:all": "lerna --stream run clean:all",
     "deduplicate": "yarn-deduplicate -s fewer --fail",
     "eslint": "jlpm eslint:check --fix",

packages/blockly/package.json

@@ -31,8 +31,9 @@
   "scripts": {
     "build": "tsc -b",
     "build:prod": "jlpm build",
-    "clean": "rimraf lib tsconfig.tsbuildinfo",
-    "clean:all": "jlpm clean",
+    "clean": "jlpm clean:lib",
+    "clean:lib": "rimraf lib tsconfig.tsbuildinfo",
+    "clean:all": "jlpm clean:lib",
     "install:extension": "jlpm build"
   },
   "dependencies": {