By Elizabeth Piper and Alistair Smout LONDON (Reuters) -An internal inquiry into allegations of lockdown parties at Boris Johnson’s Downing Street office could be published as soon as Wednesday, delivering findings that might determine the prime minister’s future after police also launched an investigation. Johnson is fighting for his political life after allegations that he and staff partied at the heart of the British government in breach of rules they had themselves imposed to fight the coronavirus pandemic. [L1N2TY0L8] Revelations of revelry including boozy parties in Downing Street, suitc…