0089905361 Add compile time checking for cs_main locks which we assert at run time (practicalswift)
Pull request description:
Assert locking requirements at compile-time (`EXCLUSIVE_LOCKS_REQUIRED(foo)`) instead of at run-time (`AssertLockHeld(…)`).
Tree-SHA512: f4965ebf4bb5dbf5e7ed738cacf82c0f6cd55134fb968860bf84a84e29806485617f223910bb8c5461213f1829b0137c64ba1f6d6a2008b3cac3bb3a28df9324
Partial backport of Core PR14444
https://github.com/bitcoin/bitcoin/pull/14444/
Depends on D4026
(changes to validation.h were made there)