Merge bitcoin/bitcoin#22904: sync, log: inline lock contention logging macro to fix duration, improve BCLog::LogMsg()

f530202353a4f8bb444966559aa15681ab3cebc6 Make unexpected time type in BCLog::LogMsg() a compile-time error (Martin Ankerl)
bddae7e7ff7bb5931ed807acaef7336f2ee98476 Add util/types.h with ALWAYS_FALSE template (MarcoFalke)
498b323425d960274c40472a6a847afc1982201d log, timer: improve BCLog::LogMsg() (Jon Atack)
8d2f847ed913f15677ae978a412015ac844ffceb sync: inline lock contention logging macro to fix time duration (Jon Atack)

Pull request description:

  Follow-up to #22736.

  The first commit addresses the issue identified and reported by Martin Ankerl in https://github.com/bitcoin/bitcoin/pull/22736#discussion_r703019629 to fix the lock contention duration reporting.

  The next three commits make improvements to the timer code in `BCLog::LogMsg()` and add `util/types.h` with an `ALWAYS_FALSE` template, that springboard from https://github.com/bitcoin/bitcoin/pull/22736#discussion_r702747920 by Marco Falke.

ACKs for top commit:
  martinus:
    re-ACK f530202353a4f8bb444966559aa15681ab3cebc6. I ran a fully synced node for about a day. My node was mostly idle though so not much was going on. I [wrote a little script](https://github.com/martinus/bitcoin-stuff/blob/main/scripts/parse-debuglog-contention-single.rb) to parse the `debug.log` and summarize the output to see if anything interesting was going on, here is the result:
  theStack:
    ACK f530202353a4f8bb444966559aa15681ab3cebc6

Tree-SHA512: 37d093eac5590e1b5846ab5994d0950d71e131177d1afe4a5f7fcd614270f977e0ea117e7af788e9a74ddcccab35b42ec8fa4db3a3378940d4988df7d21cdaaa

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