39206: sql: add RevertTable wrapper for RevertRangeRequest r=dt a=dt

(first commit is #39251)

kv,batcheval: fix RevertRange to work with DistSender and ResumeSpans

    This patch includes several changes required to make RevertRange requests
    get along with DistSender:

    1) add RevertRange to the explicit check for maxkey-supported requests.
    2) makes RevertRangeResponse combinable, however combining assumes
    that at-most-one reply returned a ResumeSpan, so it also
    3) sets NumKeys to MaxKeys in RevertRange when returning a ResumeSpan,
    to stop distsender from sending any further requests that might also hit
    a resume and then trip up combining.

    Together these make it possible to send batches of RevertRange requests
    via DistSender and get back resume spans.

    Release note: none.

sql: add RevertTables helper for reverting a Table via RevertRange

    This adds a helper that can revert a collection of tables to a target
    timestamp using the RevertRange RPC.

    It checks that the tables do not  overlap the key space of another table
    not being reverted (i.e. that all the reverting tables are interleaved,
    if at all, only with each other) and that the tables are offline.

    It then reverts the table spans using RevertRange, including handling
    the ResumeSpan pagination.

    Release note: none.

39427: storage/engine: don't decrement IntentCount on system intent abort r=nvanbenschoten a=nvanbenschoten

Fixes #39390.
Fixes #39407.
Fixes #39370.
Fixes #39419.

A bug introduced in #39251 was causing the IntentCount field in MVCCStats to get out of sync.

I was expecting `TestMVCCStatsRandomized/sys/inline=false` to easily catch the bug, but it wasn't. It turns out that the test was updating the transaction's write timestamp but not its read timestamp, which was causing it to hit this error:
https://github.com/cockroachdb/cockroach/blob/41cb28e85575292926790e79912c893d13e1054d/pkg/storage/engine/mvcc.go#L1349
This was preventing the randomized test from performing the series of steps we needed it to hit the bug.

This commit fixes the bug, fixes the randomized test so that it would have caught it, and adds a targeted regression test for this case.

Release note: None

Co-authored-by: David Taylor <tinystatemachine@gmail.com>
Co-authored-by: Nathan VanBenschoten <nvanbenschoten@gmail.com>