xml2guido: Fix accolade and barformat staff ranges
xml2guido: Fix accolade and barformat staff ranges

grame-cncm/libmusicxml,grame-cncm/libmusicxml,grame-cncm/libmusicxml,grame-cncm/libmusicxml,grame-cncm/libmusicxml,grame-cncm/libmusicxml