Chapter range chapter count fix

Fix bug where chapters would be incorrectly counted on chapter ranges

Object descriptions

Better default reflection/object descriptions.

Latest release

• remove horizontal whitespace immediately preceding version specifier

Set swift tools version to 5.3

• rename ReferenceType enum to Swift enum camelCase convention(breaking change)
• reduce swift-tools-version to 5.3/Xcode 12

Bug Fix

Book Reference Bug Fix.

Feature Parity with v2.0.0 reference_parser repo Latest

Reaches feature parity with v2.0.0 of the Dart repo: https://github.com/joshpetit/reference_parser