Peter White Television EditorDownton Abbey star Joanne Froggatt is to front a Hitchcockian thriller for Spectrum Originals and ITV.The two networks have ordered Angela Black from Fleabag producer Two Brothers Pictures.The six-part drama, which marks the L.A.’s Finest broadcaster’s first international co-production, was written by Two Brothers founders Harry and Jack Williams.Froggatt, who also starred in ITV and Sundance drama Liar plays Angela, a suburban housewife whose seemingly perfect life