Use DIRECT_METHOD_CALL macro in ILinksExtensions.h

[linksplatform-sweepai]

Description

This PR updates the ILinksExtensions.h file in the cpp/Platform.Data directory to use the DIRECT_METHOD_CALL macro for all extension methods. The DIRECT_METHOD_CALL macro is used to directly call a method on the TStorage object, bypassing any virtual dispatch mechanism. This improves the performance of the code by avoiding the overhead of virtual function calls.

Summary of Changes

• Replaced direct method calls with the DIRECT_METHOD_CALL macro in the following extension methods:
  • Create
  • Update
  • Delete
  • Count
  • Exists
  • Each
  • GetLink
  • IsFullPoint
  • IsPartialPoint
• Passed the method arguments as arguments to the DIRECT_METHOD_CALL macro.
• Used the return value of the DIRECT_METHOD_CALL macro as the return value of each extension method.

Fixes #134.

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