Feature Request: configureVFAT3sLocal() Prints Line it failed on in error key

Brief summary of issue

Right now if configureVFAT3sLocal fails to parse a VFAT3 conf file it can be very difficult to understand what the problem is. Requesting a change to legacy branch release/v1.1.X

Types of issue

[ ] Bug report (report an issue with the code)
[x] Feature request (request for change which adds functionality)

Expected Behavior

Suggest to change to:

        while (std::getline(infile,line))
        {
            std::string reg_basename = "GEM_AMC.OH.OH" + std::to_string(ohN) + ".GEB.VFAT"+std::to_string(vfatN)+".CFG_";
            std::stringstream iss(line);
            if (!(iss >> dacName >> dacVal)) {
                LOGGER->log_message(LogManager::ERROR, stdsprintf("ERROR READING VFAT3 CONF FILE FOR OH%i VFAT%i LINE: %s", ohN, vfatN, line));
                la->response->set_string("error", stdsprintf("Error Reading VFAT3 Conf File for OH%i VFAT%i line: %s", ohN, vfatN, line));
                break;
            }
            else
            {
                regName = reg_basename + dacName;
                writeReg(la, regName, dacVal);
            }
        }

Current Behavior

Currently if configureVFAT3sLocal fails to parse one or more of the VFAT3 config files on the CTP7 it throws an error but it can be very difficult to determine the line it breaks on:

https://github.com/cms-gem-daq-project/ctp7_modules/blob/92eeadc1993dfd85a19cd0a187f76eefb5029e06/src/vfat3.cpp#L148-L162

Context (for feature requests)

Easier troubleshooting and debugging.

Your Environment

Version used: 92eeadc1993dfd85a19cd0a187f76eefb5029e06

cms-gem-daq-project / ctp7_modules