`BlockNodeContext` Executor Service Factory Method

[ata-nas]

Story Form

As a Block Node Developer
I want to have a streamlined, clean and manageable approach to creating/managing thread pools
So that I have a greater control of thread pool creation and an easier maintainance if need be

Technical Notes

• As suggested in this comment thread we should create a factory method within the BlockNodeContext that will allow us to create thread pools.
• As suggested, we should have some configurable parameters, the factory method in itself is easily extendable if need be.
• As suggested, we should also consider logging/monitoring for the pools created and who issued the creation.