add HistoryKeyTxNumRange and MultisetKV

[sudeepdino008]

some tools I need for commitment history regen: #19016

commitment history regen needs: "find all acct/storage touches that happened in block x", then do ComputeCommitment. HistoryRange is what we need, but using it is slow:

• it queries .v and .vi files (for values), which is not needed
• even if we solve the above, we need to get HistoryRange for each block..which leads to full scan of the ef file. Turns out to be really slow to do.
• HistoryRange/Union does de-duplication of value..so if we query for 2 blocks and both have a common key, only one gets reported. So block ranges can't be queried (also you cannot identify "which" block the key is touched in).

HistoryKeyTxNumRange: solves both problems, it returns stream of <key, txNum>, and so can be queried across multiple blocks (batch fetch). Then we can bucket the touched keys into blocks (since we know txNum). It also doesn't do any de-duplication.

MultiSetKV -- is similarly needed for because we need to combine the files data and db data in a non-duplicated manner.

[AskAlexSharov]

I like the idea to not touch .v files