Enhance netsh CLI to print chain of programs in case of multi-attach

[saxena-anurag]

Currently sock_addr hook supports multi-attach. This is an enhancement request in netsh tool to print ordered list of programs (in the order the programs will be invoked by the hook), if there are multiple programs attached to a hook.

• Investigate if there are existing libbpf functions that support this. Write a markup with the proposed solution.
• Implement the design proposal.