feat: v1.7

Merge pull request xberg-io#6 from Goldziher/add-xlsx-support

feat: add excel file support

Merge pull request xberg-io#5 from Goldziher/replace-pypandoc

feat: replace pypandoc

Merge pull request xberg-io#4 from Goldziher/replace-pytesseract

feat: replace pytesseract

chore: updated readme

chore: update dependencies and lock file

feat: add option to force OCR

chore: add license