feat(users/Profpatsch/mailbox-org): Set up passing of sieve-test

Implement a parser for tools, and instantiate once for
arglib-netencode arguments (parsed by the new netencode parser) and
one just from the PATH for testing from the repl.

Change-Id: Id0cf264100123a87700880c7230d68426224fd0d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7798
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI

users/Profpatsch/mailbox-org/mailbox-org.cabal

@@ -11,6 +11,16 @@ executable mailbox-org
         base >=4.15 && <5,
         my-prelude,
         exec-helpers,
+        netencode,
+        text,
+        semigroupoids,
+        nonempty-containers,
+        data-fix,
+        selective,
+        directory,
+        mtl,
+        filepath,
+        arglib-netencode,
         random,
         http-conduit,
         http-client,