Massive feature drop

- pattern matching seems to be correct
- dynamic dispatch works with the to_string example
- template strings as a last-minute addition
- interpreter revamp, virtual stack for abort safety

src/bin/orcx.rs

@@ -48,6 +48,7 @@ enum Command {
   },
   #[command(arg_required_else_help = true)]
   MacroDebug {
+    #[arg(long, short)]
     symbol: String,
   },
   ListMacros,