[Gameplay] Singed is unable to buy Tiamat or Hydras.

Tiamat and the two hydras currently display the "MELEE CHAMPIONS ONLY" message when viewing them at the store as singed. This is similar to the Thresh issue where he cant buy Runaan's.

At least this time Runaan's isnt activated on singed for some god damned reason (Thresh can buy Tiamat items despite being ranged, but can't use their effects.)

I dont really get why these items are enabled champion by champion basis instead of, you know, using the melee/ranged tags already being used for stuff like masteries.