MONDAY, MAY 20 TAIPEI: Lai Ching-te takes office as Taiwan’s new president, gives a closely watched inaugural speech that is expected to touch on relations with Beijing. TOKYO: Saudi Arabia’s de facto leader, Crown Prince Mohammed bin Salman, visits Japan, meets with Emperor Naruhito and Prime Minister Fumio Kishida (until Wednesday). NEW DELHI: Fifth phase of India’s general election begins. LONDON: A second hearing is held at the UK High Court over whether Julian Assange can launch an appeal against his extradition to the US, where he is wanted over WikiLeaks’ release of confidential militar…