[io-layer] Extract Mutex, Semaphore and Event (#3553)

[io-layer] Extract Mutex, Semaphore and Event (#3553)

* [metadata] Move mutex managed support to seperate file

* [mutex] Extract CreateMutex

* [mutex] Extract ReleaseMutex

* [mutex] Extract OpenMutex

* [mutex] Extract wapi_mutex_abandon

* [mutex] Extract MonoW32HandleOps for mutex and named mutex

* [io-layer] Extract wapi_search_handle_namespace

* [metadata] Move semaphore managed support to seperate file

* [semaphore] Move _WapiHandle_sem and _WapiHandle_namedsem to semaphores.h

* [semaphore] Extract CreateSemaphore

* [semaphore] Extract ReleaseSemaphore

* [semaphore] Extract OpenSemaphore

* [semaphore] Extract MonoW32HandleOps

* [metadata] Move event managed support to seperate file

* [event] Extract CreateEvent

* [event] Remove dead code PulseEvent

* [event] Extract SetEvent

* [event] Extract ResetEvent

* [event] Extract OpenHandle

* [event] Extract MonoW32HandleOps

* [w32handle] Extract namespace locking

* [io-layer] Inline only use of wapi_shm_sem_lock/wapi_shm_sem_unlock