caption-checker 1.0.0

First release. Checks SRT and WebVTT captions against Netflix English, the BBC subtitle guidelines and the DCMP Captioning Key: reading speed, characters a line, lines, time on screen, gaps and overlaps. CLI (npx github:markksantos/caption-checker captions.srt) and Node library; no dependencies, Node 18+. Browser version: https://www.markstudios.com/tools/caption-checker. See CHANGELOG.md.