add an all plaform supported cleanup solution

Author: Vizonex

bin/clean.ts

@@ -0,0 +1,12 @@
+#!/usr/bin/env -S node --import tsx
+
+import { rmSync } from "fs";
+/* 
+Some operating systems do not have the ability to perform
+rm -rf ... (example: Windows) 
+*/
+
+rmSync('lib', {'force':true, 'recursive':true})
+rmSync('test/tmp', {'force':true, 'recursive':true})
+
+

package.json

@@ -15,7 +15,7 @@
     "prebuild-wasm": "npm run wasm -- --prebuild && npm run wasm -- --setup",
     "build-wasm": "npm run wasm -- --docker",
     "wasm": "node --import tsx bin/build_wasm.ts",
-    "clean": "rm -rf lib && rm -rf test/tmp",
+    "clean": "node --import tsx bin/clean.ts",
     "prepare": "npm run clean && npm run build-ts",
     "test": "node --import tsx ./test/md-test.ts",
     "lint": "eslint",