Access Token Proof of Possession Capability

[FehintolaObafemi]

Fixes #

Changes proposed in this pull request

• Introducing an Access Token Proof of Possession capability for this SDK
• Updating the dependencies to the latest version to support all recent changes
• Adding the option to specify http method for AT PoP bound token acquisition
• Adding the option to specify the URI for AT PoP bound token acquisition

Other links

• Link to parent work item: https://identitydivision.visualstudio.com/Engineering/_workitems/edit/1795829