New Results API

[sgb-io]

This updates the top level API of codehawk-cli and exposes new data, mainly average/worst scores for a project. Support for 2 new badges has also been added.

• analyzeProject has been updated to return a new Result interface.
  • results has been moved to fullResultsTree, users can still interact with the full tree as before
  • resultsList was added, it contains a flat list of all analyzed files (FullyAnalyzedFile[]), which is often more practical to work with rather than manually traversing the whole tree
  • summary was added, it contains a new ResultsSummary which gives us the average, median and worst score from all analyzed files
• generateBadge added to public API. This is also called during normal runs.
• Renamed blacklist to blocklist
• Moved to using import type syntax for type imports
• Updated sample test outputs
• Bumped jest
• Bumped typescript

Resolves #44