Add cloud OCR

[FoxxMD]

Cloud services (most likely) provide more powerful and more accurate text recognition services than what can be done locally without a ML/NN model. Implement these services in a tiered approach:

Google Cloud Vision

https://cloud.google.com/vision/docs/ocr#vision_text_detection-nodejs
https://cloud.google.com/vision/pricing

Offers:

• Text Detection -> 1000 free, then $1.50/1000
• Label (Object) Detection -> 1000 free, then $1.50/1000

Azure Computer Vision

https://learn.microsoft.com/en-us/azure/cognitive-services/computer-vision/how-to/call-read-api
https://azure.microsoft.com/en-us/pricing/details/cognitive-services/computer-vision/

• Text Detection -> 5000 free?, then $1.00/1000
• Label (Object) Detection -> 5000 free?, then $1.00/1000

Amazon Textract

https://docs.aws.amazon.com/textract/latest/dg/how-it-works-detecting.html
https://aws.amazon.com/textract/pricing/

• Text Detection -> 1000 free?, then $1.50/1000