[Planning] Mass Delegate to Abstain test

[mesudip]

Testing of mass 'delegate-to-abstain' type activities, with Cardano Wallet

This is the default. Identify personas and test delegations (Ryan Williams, Carlos)

• Suppose an exchange with millions of customer wallet -> they all delegate-to-abstain

Acceptance Criteria

• [x] Determine tools and framework to use
• [x] Planning document identifying the personas and the testing scenario

[mesudip]

This to be considered as subtask of https://github.com/cardanoapi/hardfork-testing/issues/10

[mesudip]

Let's do this after the gov-action stress tests using the same code.