Selling art has become an art form in itself.  A gallery owner needs to build a reputation for themselves, get artists on board and host exhibitions with the end goal of selling them so that the doors of their gallery remain open.  One Dublin based curator sees patronage and collaboration as the salvation for commercial galleries like his own.  ***** Olivier Cornet is what you imagine every art gallery owner would be like. He’s refined, has a wealth of knowledge on art and modern culture, plus he is French.  The eponymous founder of the Olivier Cornet Gallery on 3 Great…