implemented a lot of features

lib/par2/index.ts

@@ -0,0 +1,5 @@
+/**
+ * PAR2 parsing, independent of AdonisJS. Used to recover the real filenames
+ * and sizes of obfuscated posts. See CONCEPT.md (D16).
+ */
+export { parsePar2, isPar2, type Par2File, type Par2Set } from './parse.js'