[FEATURE] Add bulkFinishEscrow function

[YoshihitoAso]

Is your feature request related to a problem? Please describe.

In Escrow contracts, I would like to add the ability to perform finishEscrow in batches.

Possible benefits:

• Reduction in the number of transaction executions
• Simplify the determination of consistency of processing results

Describe the solution you'd like

I would like to add bulkFinishEscrow function.