Changes

2.0.0

Parallel tests, modern JavaScript and drop support for Node < 8
Add ESM support
Update vulnerable dependencies
Drop unnecessary dep: cer
Reorganize code

1.2.0

Added API for cancelling ongoing recognition processes.
Introduced:
- Method: tesseract.recognize.cancel(process)
- Method: tesseract.recognize.cancelAll()
- Event: started
- Event: finished