Port inline images to Adaptive Cards, Hero Cards, Card Lists, Thumbnail Cards

[PrzemyslawKlys]

While mentioned cards do support images from URL it would be nice to port a feature that is already available in old team cards to download an image from URL/file path and insert them directly into JSON.

Additionally, trim content of those attached fields in verbose so it doesn't display binary data in Verbose. Example:

https://github.com/EvotecIT/Mailozaurr/blob/0580da77941d7a68cb2696c35a6978ebb58cb987/Private/Send-GraphMailMessage.ps1#L111-L133