By Foo Yun Chee and Supantha Mukherjee BRUSSELS/STOCKHOLM (Reuters) – European telecoms providers are set to win their decade-long fight to make Big Tech pay for network costs, thanks to sympathetic EU regulators and the bloc’s efforts to rein in U.S. tech giants, according to industry and regulatory sources, in the EU’s strongest move yet to set a global standard. Deutsche Telekom, Orange, Telefonica, Telecom Italia and the big operators say it is all about a fair share contribution, especially as the six largest content providers account for just over half of data internet traffic. Alphabet …