Add support for passing user's original role for impersonation

[findinpath]

Describe the feature

Motivated by trinodb/trino#25371

• X-Trino-Set-Original-Roles
• Instructs the client to set the roles of the original user in the
  X-Trino-Original-Roles request header in subsequent client requests.

Describe alternatives you've considered

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!