Add various missing APIs to io-classes

[coot]

resolves IntersectMBO/ouroboros-network#2797
resolves IntersectMBO/ouroboros-network#2650
resolves IntersectMBO/ouroboros-network#3436
resolves IntersectMBO/ouroboros-network#2588
resolves IntersectMBO/ouroboros-network#2587
resolves IntersectMBO/ouroboros-network#2586

TODO:

• StrictTArray
• StrictTSem: TSem is already strict, there's no need to provide a wrapper.
• StrictTChan
• Update the changelog file.
• flashTQueue
• labelTChan & labelTChanIO
• traceTChan & traceTChanIO
• missing castStrictTQueue / castStrictTBQueue (and a likes)

[coot]

It's probably not a bad idea to split the MonadSTM class into smaller pieces, following how the stm package is organised:

• MoandSTM: which just provides STM, atomically, etc and is a base class for all the other type classes.
• MonadTVar
• MonadTArray
• MonadTBQueue
• MonadTChan
• MonadTMVar
• MonadTQueue
• MonadTSem
  Similarly the Control.Monad.Class.MonadSTM.Strict ought to be split.

To make the transition simpler let's expose Control.Monad.Class.MonadSTM.Compat which expose:

class (MonadSTM.MonadSTM m, MonadTVar m, MonadMVar m, ...) => MonadSTM m where {}

There should also be a Control.Monad.Class.MonadSTM.Strict.Compat which exports all the strict interfaces and the above MonadSTM class.