Implement most of the spec reusing scribe & nefthera code

ocaml/bin/dune

@@ -1,4 +1,5 @@
 (executable
- (public_name tori)
- (name main)
- (libraries tori))
+    (public_name tori)
+    (name main)
+    (libraries tori)
+)

ocaml/bin/main.ml

@@ -1 +1,6 @@
-let () = print_endline "Hello, OCaml!"
+let () =
+    match Array.to_list Sys.argv with
+    | _ :: tail ->
+        let future = (Tori.Parsers.Argument.interpret Tori.Schema.seed tail) in
+        if future.output.message <> "" then print_endline future.output.message
+    | [] -> assert false