Add thread local unchecked APIs

[pedromfedricci]

Add two new locking APIs for thread_local::Mutex:

• try_lock_with_unchecked
• lock_with_unchecked

Both APIs are unsafe, but are more efficient, specially at hot paths, as they opt-out the runtime borrow checking. Users must guarantee that no more than one thread_local::MutexGuard are alive within a single thread at any time.

Add caller location for try_lock_with and lock_with APIs for better debugging experience when panicking.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2d7b02d) 96.80% compared to head (167b893) 96.52%.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
- Coverage   96.80%   96.52%   -0.29%     
==========================================
  Files           5        5              
  Lines         219      230      +11     
==========================================
+ Hits          212      222      +10     
- Misses          7        8       +1     

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