feat: Implement reuse connection for dedicated agent (Credo-controller)

[bhavanakarwade]

• Implement reuse connection in OOB issuance for dedicated agent
• Implement reuse connection in OOB verification for dedicated agent
• Implement reuse connection in OOB create-invitation for dedicated agent

[ashwini-aher]

As tested, the changes are as expected, Thus changing the status to "Done".

[GHkrishna]

@ashwini-aher can we close this issue, as it is marked done?

[ashwini-aher]

@GHkrishna Yes.