Updated requirements

Replaced Conclusion with Contributing

Create CONTRIBUTING.md

Create CODE_OF_CONDUCT.md

Formatting imports

Add issue templates

Update __init__.py

Update CalculusOCR.py

Delete CalculusOCR/requirements.txt

Update README.md

Added test images

Delete CalculusOCR/version.txt

Delete CalculusOCR/version.py

Update setup.py

Update setup.py