FOLLOWING the smash-hit success of his live DVD recording last year, Richard Herring is returning to St David’s Hall on Sunday 2 April at 8pm. And this time, he’ll be cramming his favourite routines from his 12 solo shows over the last 20-odd years into a 90 minutes ‘greatest hits’ set called The Best. The King of Edinburgh Fringe, Metro columnist and the UK’s ‘Podfather’ has become renowned for his observational wit and deadpan delivery about the mundanities, nuances and…