85 Add bounding box helpers to lib exports

[carolinepaulic]

For tickets #85 (add boundingBox helper functions to library exports) and #80 (remove unused raw entity types)

Changes in this PR:

• New library build and version increase to v0.0.17
• Added to library exports:
  • RawBoundingBox type
  • scaleRawBoundingBox function
• Remove the following from the demo app:
  • Types: AnnotationsRaw, CitationAttributesRaw, CitationRaw, EntityRaw, EntityAttributesRaw, ENTITY_TYPE enum
  • Util function: transformRawAnnotations(...)
• Moved/renamed the following type files in library:
  • Page.ts > page.ts
  • Outline.ts > outline.ts
  • types.ts split into boundingBox.ts (for Dimensions, Origin, Size, BoundingBox, RawBoundingBox, and scaleRawBoundingBox(...) function) and utils.ts for Nullable type