Fix: melee combat possibly waking nearby mons

The change from d1497be of potentially waking nearby monsters when
engaging in hand-to-hand combat was apparently lost when the vanilla
hmon refactor was merged.

I'm not sure if this is the right spot to situate it or not (e.g. it
could go into hmon_hitmon itself).

src/uhitm.c

@@ -1501,6 +1501,13 @@ hmon_hitmon_do_hit(
     struct monst *mon,
     struct obj *obj)
 {
+    if (!(is_silent(gy.youmonst.data) && helpless(mon))
+        && hmd->hand_to_hand && rn2(Stealth ? 10 : 5)) {
+        int base_combat_noise = combat_noise(&mons[gu.urace.mnum]);
+        if (Stealth)
+            base_combat_noise /= 2;
+        wake_nearto(mon->mx, mon->my, base_combat_noise);
+    }
     if (!obj) { /* attack with bare hands */
         hmon_hitmon_barehands(hmd, mon);
     } else {