Fix loader ABI compatibility regression

[planetchili]

Keep sink tracking and pmUnlinkLogging_ teardown while reverting the id-table link parameter to the v2.5.1 interface.

Treat internal middleware hooks as optional at loader bind time.

Resolve pm*_ exports with best-effort C++ lookup and guard loader proxies when hooks are absent so session C API load is not blocked.

closes #664

[Copilot]

Pull request overview

This PR addresses loader/middleware binary compatibility by making internal (private) middleware hooks optional at loader bind time, while updating the internal logging link mechanism used to bridge identification-table updates between the middleware DLL and the host process.

Changes:

• Make loader resolution of internal C++-linkage hooks optional so older middleware DLLs don’t prevent session C API loading.
• Update pmLinkLogging_ to accept an ID-table getter callable and remove the old IdentificationTableCallbacks forwarding mechanism.
• Update sample/client and test call sites to use the new pmLinkLogging_ interface.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
IntelPresentMon/SampleClient/LogSetup.cpp	Updates pmLinkLogging_ call site for ID-table linking (needs guarding for empty getters).
IntelPresentMon/PresentMonAPI2Tests/Logging.cpp	Updates test harness to pass the new ID-table getter.
IntelPresentMon/PresentMonAPI2Loader/Implementation.cpp	Makes internal C++ endpoints optional at bind time; guards proxies when hooks are absent.
IntelPresentMon/PresentMonAPI2/PresentMonAPI.cpp	Implements new pmLinkLogging_ ID-table bridge using an ID-table getter callable.
IntelPresentMon/PresentMonAPI2/Internal.h	Updates internal export signature of pmLinkLogging_.
IntelPresentMon/Core/source/infra/LogSetup.cpp	Updates core client logging setup to pass new ID-table getter.
IntelPresentMon/CommonUtilities/log/IdentificationTable.h	Removes IdentificationTableCallbacks and its forwarding helper declaration.
IntelPresentMon/CommonUtilities/log/IdentificationTable.cpp	Removes MakeForwardingCallbacks() implementation.

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