Extract common code into package

[binarymist]

Create a purpleteam-common package

• Extract schemas from orchestrator (for orchestrator and CLI) into NPM package
• Extract hapiEventHandler from orchestrator (for orchestrator, app-scanner and tls-scanner) into NPM package
• Extract messagePublisher into NPM package, need tester type env var (app, tls, etc)
• Extract runCuc from app-scanner (for app-scanner, tls-scanner, other Testers) into NPM package, need tester type env var (app, tls, etc)
• Extract from Tester models the routines: getActiveFeatureFileUris and getTestPlanText