By Andrew MacAskill LONDON (Reuters) – Britain’s finance and health ministers resigned in quick succession on Tuesday, in moves that put the future of Prime Minister Boris Johnson in peril after a series of scandals that have damaged his administration. Below is a summary of some of those who could be in the frame to replace him should he reign or be ousted: LIZ TRUSS The foreign secretary is the darling of the Conservatives’ grassroots and has regularly topped polls of party members carried out by the website Conservative Home. Truss has a carefully cultivated public image and was photographe…