message: up version + text-encoding optional
diff: {
  "name": "@zxing/library",
  - "version": "0.6.0-dev.b037218",
  + "version": "0.6.0-beta.0",
  "description": "TypeScript port of ZXing multi-format 1D/2D barcode image processing library, with Code128 and ITF support.",
  "keywords": [
  "reader",
  "dependencies": {
  "ts-custom-error": "^2.2.1"
  },
  - "peerDependencies": {
  + "optionalDependencies": {
  "text-encoding": "^0.6.4"
  },
  "devDependencies": {
  