try-runtime: execute a range of past blocks

[kianenigma]

An extension to the existing execute-block that, instead of re-executing one block, it executes a range of past blocks, as long as they are one continuous range.

Should be tested with the new testing infra added in #13794.

[PieWol]

Hey, I would really like to work on this issue but my experience in try-runtime is absolutely zero. This looks like you want a new fn in the impl frame_try_runtime::TryRuntime<Block> for Runtime codeblock that takes a range of blocks as an argument instead of the single block as execute_block does. Is that correct? So it would be a simple wrapper function using the already existing execute_block fn. I'll just try to figure out a correct way to implement that function so it is available via the cli. Regarding the continous range, does it mean the new fn should check for the user that every block is in the correct order so a failure would be detectable before the actual execution?

[liamaharon]

Moved to paritytech/try-runtime-cli#11