LM - add code to support inter-agent client A&A flow

[syc17]

Add code to call AC-lib to get an identity token (see https://github.com/orgs/mF2C/projects/1#card-20403845)

this task depends on:

1. https://github.com/orgs/mF2C/projects/1#card-20403080
2. https://github.com/orgs/mF2C/projects/1#card-20403286
3. https://github.com/orgs/mF2C/projects/1#card-20402814
4. https://github.com/orgs/mF2C/projects/1#card-19698701

[syc17]

Also see: https://github.com/orgs/mF2C/projects/1#card-25221968