By Stephen Farrell LVIV, Ukraine (Reuters) – After Russian forces began attacking Ukrainian cities such as Mariupol, museums and local authorities rushed to protect their heritage, stowing away precious artworks, religious icons, and fortifying national monuments. In the cobblestoned western city of Lviv, a team led by restorer Andriy Fedoryshyn has been using plexiglass, fire-proof padding and heavy duty canvas to protect statues outside their 18th century baroque cathedral. “After having seen how Russia is destroying residential blocks and infrastructure facilities in our cities, we realized…