(Reuters) - London's FTSE 100 followed global peers higher on Friday as hopes of an imminent U.S.-China trade deal were rekindled by comments from a senior U.S. official, while BT slipped after Britain's opposition party vowed to nationalise parts of the telecoms provider.The main index rose 0.5%, boosted by miners as well as Asia-focused banks HSBC and Prudential , after White House economic adviser Larry Kudlow said Washington was getting close to a trade pact with Beijing.Shares of BT shed..