By Arnd Wiegmann BRIG, Switzerland (Reuters) – An activist group erected protest billboards in FIFA boss Gianni Infantino’s Swiss home town of Brig on Wednesday to demand the world soccer body compensate migrant workers for alleged human rights abuses in Qatar, host of the football World Cup. The mobile billboards carried the messages “Infantino: your family were migrants”, “Thousands like them were victims of this World Cup”, and “Compensate them now”. The protest by the Avaaz campaign group also included an Infantino impersonator holding a World Cup trophy. Qatar, where foreigners make up mo…