Improve assert_util classes and implementation

In SERVER-53135, a number of improvements were identified by Billy Donahue, outlined primarily in this CR. A short (non-exhaustive) summary of the proposed changes:

• Remove the constructor for AssertionCount (it requires no special initialization and we are currently erroneously missing tripwire initialization)
• Add tripwire to the rollover logic
• Add proper methods to AssertionCount to increment and handle rollovers of each sub-AtomicWord
• Keep a ring buffer of tripwire occurrences and dump them again upon checking them
• Dump tripwire occurrences during the myTerminate termination handler