feat: barging with thread local queue nodes

[pedromfedricci]

For mcslock::barging::Mutex:

If the thread_local feature is enabled (not no_std compatible), locking operations that block (lock and lock_then) will access and modify queue nodes stored at the thread local storage of the locking threads. Else, these locking operations will allocate a queue node in the stack, for each call (no_std compatible). The later is current behavior.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 93.75000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 98.61%. Comparing base (c0ebb14) to head (25a3b81).

Files with missing lines	Patch %	Lines
src/inner/raw/mod.rs	87.50%	2 Missing ⚠️
src/inner/barging/thread_local.rs	85.71%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
- Coverage   98.90%   98.61%   -0.30%     
==========================================
  Files           9       11       +2     
  Lines         275      288      +13     
==========================================
+ Hits          272      284      +12     
- Misses          3        4       +1     

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