Fix token parsing for BA_ section
Fix token parsing for BA_ section

Previously there was an issue with token parsing in the _BA section of DBC files. If the parser ran into a '[' or ']' within quotes then it would cough. This commit fixes this bug and allows the parser to work for these cases.
altendky/canmatrix,altendky/canmatrix,ebroecker/canmatrix,ebroecker/canmatrix