Merge Telegram.Bot.Extensions.Passport

[karb0f0s]

Merge Telegram.Bot.Extensions.Passport to the main repo.

If I remember correctly, we put it into separate repo because at the time main repo used .Net Standard 1.3 and Passport required some crypto APIs from .Net Standard 2.0.

[karb0f0s]

Also we can pull CheckAuthorization from Telegram.Bot.Extensions.LoginWidget - the same algorithm used to validate Web App data

[wiz0u]

For now I see no user demand for merging.
We would have to convert it to STJ as well.

Note: SetPassportDataErrorsRequest is already generated in main repo.

[wiz0u]

pull CheckAuthorization - the same algorithm used to validate Web App data

actually no, there is a subtle difference