Add .prettierignore to ignore lib linting

Author: ernestognw

.prettierignore

@@ -0,0 +1 @@
+lib

package.json

@@ -17,10 +17,10 @@
     "prepare-docs": "scripts/prepare-docs.sh",
     "lint": "npm run lint:js && npm run lint:sol",
     "lint:fix": "npm run lint:js:fix && npm run lint:sol:fix",
-    "lint:js": "prettier --log-level warn --ignore-path .gitignore '**/*.{js,ts}' --check && eslint .",
-    "lint:js:fix": "prettier --log-level warn --ignore-path .gitignore '**/*.{js,ts}' --write && eslint . --fix",
-    "lint:sol": "prettier --log-level warn --ignore-path .gitignore '{contracts,test}/**/*.sol' --check && solhint '{contracts,test}/**/*.sol'",
-    "lint:sol:fix": "prettier --log-level warn --ignore-path .gitignore '{contracts,test}/**/*.sol' --write",
+    "lint:js": "prettier --log-level warn '**/*.{js,ts}' --check && eslint .",
+    "lint:js:fix": "prettier --log-level warn '**/*.{js,ts}' --write && eslint . --fix",
+    "lint:sol": "prettier --log-level warn '{contracts,test}/**/*.sol' --check && solhint '{contracts,test}/**/*.sol'",
+    "lint:sol:fix": "prettier --log-level warn '{contracts,test}/**/*.sol' --write",
     "coverage": "scripts/checks/coverage.sh",
     "test": "hardhat test",
     "test:inheritance": "scripts/checks/inheritance-ordering.js artifacts/build-info/*",