`RPA.DocumentAI` IDP improvements

[cmin764]

Let's gather a list of potential upcoming overall improvements to the IDP library:

• [x] Azure Robocloud -> Robocorp: https://github.com/robocorp/rpaframework/issues/635
• [x] #803
• [ ] Add AWS & Azure engines: https://linear.app/robocorp/issue/LIB-20/investigate-what-we-can-do-with-the-current-existing-keywords-and-more
• [ ] AWS enhancement (expense API): https://github.com/robocorp/rpaframework/issues/769
• [ ] OCR capability with RPA.DocumentAI using the azure engine (implies API addition to RPA.Cloud.Azure)
• [ ] ~Add OpenAI engine.~

4 Aug 2023

• [x] List under the docs the extra required deps (otherwise error is raised), like rpaframework-google when deciding to use the google engine for example.
• [x] Authorization instructions detailed in every auth keyword of the wrapped libraries + links to these under the generic Init Engine keyword.
• [x] Detail the expected Vault structure in the Portal example. (vault.yaml content)
• [x] Update the Base64AI Portal example (and not only) for using the newest library after all the above take effect.

[tonnitommi]

OpenAI engine would not be relevant in this context.

[tonnitommi]

Add signature matching to RPA.DocmentAI.Base64ai library

Using the end point: https://base64.ai/api/signature/recognize. It should take two images as input: reference and query. Return the full base64 response.

Documentation: https://documenter.getpostman.com/view/10132588/SWT5hfdz#4901ae73-d3e4-4725-bfdd-a72abd9b9fca

[tonnitommi]

Closing the issue as we have a released RPA.DocumentAI with solid features. New features to be collected under new issues.

[cmin764]

Closing the issue as we have a released RPA.DocumentAI with solid features. New features to be collected under new issues.

Yes, still, we can keep track of the useful not-implemented notes in this one (description bullet points) and convert them to Issues to be tackled in the next sprint on the DocumentAI topic.

[cmin764]

Re-opening epic with sprint 4 Aug 2023. This can be kept open as an ongoing issue which actively collects the direct issues relevant to the DocAI topic.