Nvidia chief executive Jensen Huang has never anointed ⁠a successor, but many analysts and investors see two people as particularly likely candidates, at least for the short ⁠term: engineer Ian Buck and chief financial officer Colette Kress.Nvidia's board is meeting on Wednesday ​to decide whether to oust Mr Huang, a source said, as the world's dominant supplier of AI processors deals with reports of two extramarital affairs involving its…