Jake Kanter International TV EditorThe BBC and ITV’s joint-venture streamer BritBox has pulled the curtain back on its first slate of UK drama originals, just weeks after Deadline revealed that Damian Lewis and Dominic West will star in an adaptation of A Spy Among Friends for the streamer.Building on the Kim Philby espionage thriller, which BritBox is co-producing with Spectrum Originals, the subscription video service has announced three fresh projects — all of which are literary adaptations