release_3096

All PRs included

PR #2340 Refactor unit test for SmartAnswer::Question::Base
PR #2338 Render questions like GovSpeak outcomes and landing pages
PR #2337 Stop abc test on start now buttons
PR #2334 Update outcome in childcare cost for tax credits
PR #2330 Replace Links for Statutory maternity paternity calculator
PR #2319 Refactor SmartAnswer::Question::Base

PRs to check post-deployment

PR #2334 Update outcome in childcare cost for tax credits
PR #2330 Replace Links for Statutory maternity paternity calculator