Add offline Kerberos ticket trace output

[eve0805]

Summary

This reuses the existing Kerberos ticket trace formatting for offline Kerberos artifact workflows, so stored and converted tickets can be inspected with the same output style used during live Kerberos authentication.

Implemented functionality:

1. Added shared offline trace rendering through Krb5CcachePresenter, including metadata, ticket, and full trace modes.

2. Updated Ticket#print_contents to support KerberosTicketTrace, allowing offline ticket inspection to print structured trace output.

3. Added KerberosTicketTrace support to auxiliary/admin/kerberos/ticket_converter, so converted .ccache / .kirbi artifacts can be printed with the same trace conventions.

4. Added klist --trace metadata|ticket|full support to the console DB command, making stored Kerberos tickets easier to inspect from msfconsole.

5. Reused the same credential presentation path for live and offline ticket output to keep formatting consistent.

6. Added RSpec coverage for the presenter, logger subscriber formatting, ticket converter behavior, and klist --trace.

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