Feature: add adaptive primitives for both fiber and pthread context

[hzlushiliang]

• Add FiberMutex primitive
• Add FiberConditionVariable primitive
• Add FiberSharedMutex primitive
• Add FiberSleepFor primitive
• Add FiberSleepUntil primitive
• Add FiberLatch primitive
• Add FiberEvent primitive
• Add futex_notifier_test

[codecov]

Codecov Report

Merging #87 (157b4c3) into main (f99f77d) will decrease coverage by 0.07342%.
The diff coverage is 99.06542%.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main         #87         +/-   ##
===================================================
- Coverage   81.79932%   81.72590%   -0.07342%     
===================================================
  Files            855         855                 
  Lines          33746       33791         +45     
===================================================
+ Hits           27604       27616         +12     
- Misses          6142        6175         +33     

Files	Coverage Δ
trpc/coroutine/fiber.cc	89.65517% <100.00000%> (+0.36946%)	⬆️
trpc/coroutine/fiber.h	100.00000% <ø> (ø)
trpc/coroutine/fiber_condition_variable.h	100.00000% <ø> (ø)
trpc/coroutine/fiber_event.h	66.66667% <ø> (ø)
trpc/coroutine/fiber_latch.h	100.00000% <ø> (ø)
trpc/coroutine/fiber_shared_mutex.h	100.00000% <ø> (ø)
...odel/fiber/detail/scheduling/v1/scheduling_impl.cc	90.61033% <100.00000%> (+0.04429%)	⬆️
...odel/fiber/detail/scheduling/v2/scheduling_impl.cc	77.08333% <100.00000%> (+0.11997%)	⬆️
trpc/runtime/threadmodel/fiber/detail/waitable.h	92.00000% <100.00000%> (-0.30769%)	⬇️
trpc/util/thread/futex_notifier.h	88.00000% <100.00000%> (+13.00000%)	⬆️
... and 1 more

... and 11 files with indirect coverage changes

[trpc-admin]

是不是有一些头文件的注释和校验fiber环境没有改？

[hzlushiliang]

确实，开源版本在主库的基础上加了很多注释，这些注释也要对应调整，我调整一下