new command url parse (#6854) and url subcommands tests (#7124)

*code refactor from PR tips & clippy fixes

*added username, password, and fragment

*commands `url host`, `url scheme`, `url query`, and `url path` removed

*tests refactoring - avoid formatted output

crates/nu-command/tests/commands/mod.rs

@@ -84,6 +84,7 @@ mod transpose;
 mod uniq;
 mod update;
 mod upsert;
+mod url;
 mod use_;
 mod where_;
 #[cfg(feature = "which-support")]