Almost exactly a year after Salman bin Albdulaziz Al Saud, king of Saudi Arabia, Custodian of the Two Holy Mosques and head of the House of Saud, hurriedly left his millionaire’s mansion near Cannes with his 1,000 servants to continue his vacation in Morocco, the kingdom’s cash is not flowing so smoothly for the tens of thousands of sub-continental expatriates sweating away on his …