[UR][OpenCL][CUDA][HIP][L0][L0v2][Offload] Refactor reference counting in UR across all adapters into a new common UR_ReferenceCounter class #18823
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Closes #18644
Some adapters had a count member in their structs with methods to modify, or a dedicated class which classes inherited from. I opted to create a new class
UR_ReferenceCounter
in/common/ur_ref_counter.hpp
and added this as a member to any structs which had reference counting to follow preferring composition over inheritance. Happy to hear opinions on other ways of doing it.Removes
contextReleaseMutex
from OpenCLurContextRelease
which shouldn't be required.Also added this across the Sanitizer layers.