Request events for block range

[Kay-Zee]

Issue To Be Solved

Currently, it's only possible to get block events for a single block at a time. The access API currently supports getting event info for multiple blocks at once. We should try and leverage this functionality.

Suggest A Solution

We should either:
a) Add the ability to query multiple blocks at once using the current API. (i.e. put under the blocks sub command)

• The advantage here is a large amount of reusable code
• The disadvantage is that we'd actually not use the events API provided by the access API in a very optimized way

b) Add a new subcommand events which would simply query events.

• The advantage would be a cleaner separation of intent, and better use of the AccessAPI,
• The disadvantage would be that we'd now be able to query events from both the blocks and events sub commands, which could be somewhat confusing, as well as still not having the ability to query multiple blocks at once

I am likely to do a PoC of option b) and go from there.