feat: add english vocabulary for HSK1–HSK6

content/Bijection-from-CSV/.apkg-spec.yaml

content/Bijection-from-CSV/content.csv

content/Bijection-from-Images/.apkg-spec.yaml

content/Bijection-from-Images/red.png

content/Facts-from-CSV/.apkg-spec.yaml

content/Facts-from-CSV/content.csv

content/HSK-English/.apkg-spec.yaml

content/HSK-English/kil-en-hsk-1-to-6.csv

content/Vocabulary-from-Anki/.apkg-spec.yaml

content/Vocabulary-from-Anki/Chinesisch.txt

content/Vocabulary-from-Anki/README.md

resources/KIL_HSK_NOTICE_EN