ted: add moon thread for setting up a new moon

General setup cribbed from the |moon generator. This achieves the same,
but in a thread, and produces a [@p (unit @uw)] result instead of just
printing it into the slogs.

desk/ted/moon.hoon

@@ -0,0 +1,30 @@
+/-  spider
+/+  strandio
+=,  strand=strand:spider
+^-  thread:spider
+|=  arg=vase
+=/  m  (strand ,vase)
+^-  form:m
+=+  !<(arg=?(~ [~ ?(mon=@p [mon=@p =pass])]) arg)
+;<  =bowl:spider  bind:m  get-bowl:strandio
+=/  mon=ship
+  ?^  arg
+    ?@(+.arg mon.arg mon.arg)
+  (add our.bowl (lsh 5 (end 5 (shaz eny.bowl))))
+=/  seg=ship  (sein:title our.bowl now.bowl mon)
+?.  =(our.bowl seg)
+  %+  strand-fail:strand  %not-our-moon
+  :_  ~
+  :-  %leaf
+  "can't create keys for {(scow %p mon)}, which belongs to {(scow %p seg)}"
+=/  [seed=(unit seed:jael) =pass]
+  ~!  arg
+  ?:  ?=([~ @ @] arg)
+    [~ pass.arg]
+  =/  cub  (pit:nu:crub:crypto 512 (shaz (jam mon life=1 eny.bowl)))
+  :-  `[mon 1 sec:ex:cub ~]
+  pub:ex:cub
+;<  ~  bind:m
+  %-  send-raw-card:strandio
+  [%pass /ted/moon %arvo %j %moon mon *id:block:jael %keys [1 1 pass] %.n]
+(pure:m !>([mon `(unit @uw)`(bind seed jam)]))