Add BugHerd tracking for reporting visual issues
Add BugHerd tracking for reporting visual issues

For now this adds the BugHerd tracking code regardless of environment. This will
need to be removed before the next production release of survey runner, or made
configurable to it can be 'turned on' in pre-prod.

ONSdigital/eq-survey-runner,ONSdigital/eq-survey-runner,ONSdigital/eq-survey-runner,ONSdigital/eq-survey-runner