Santiago de Compostela is full of the walking wounded – but they are the happiest, most joyous band of walking wounded you will ever see in peacetime. Under the watchful gaze of the statue of St James flanked either side by the two soaring lichen and moss-covered spires of the cathedral (okay, one was covered in a facsimile of its real self as it received a facelift but I do hope they leave the lichen where it is), the vast expanse of the Plaza de Obradoiro is the perfect place to sit and watch the extraordinary scene of pilgrims enter the concourse in pure celebration and sheer relief that their…