By Francesco Guarascio BRUSSELS (Reuters) – In the early stages of sanctions drafting against Moscow, one idea gained traction in Brussels – a ban on the import of Russian coal – until the European Union’s biggest economy Germany struck it down, two sources told Reuters. Before Russia invaded Ukraine, but was amassing troops, EU policymakers began in December to work on new sanctions and presented a first list of possible measures to EU countries in January. It avoided most energy imports because of the EU’s dependency on Russian fossil fuels, especially gas and oil. But it included a ban on c…