Add coverage heatmap visualization with --heatmap CLI flag#7

dreamquality with Copilot wants to merge 3 commits into

maindreamquality/swagger-coverage-cli:mainfrom

copilot/fix-f23a617e-9bcc-405b-9a77-10abdd68c75adreamquality/swagger-coverage-cli:copilot/fix-f23a617e-9bcc-405b-9a77-10abdd68c75aCopy head branch name to clipboard