P3475R2 Deprecate memory_order::consume

[StephanTLavavej]

WG21-P3475R2 Deprecate memory_order::consume

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This is a Core paper with Library impact, but the library changes don't depend on compiler changes.

No feature-test macro is mentioned.

Note that the outright removal of [[carries_dependency]] means that we should drop our macroization defenses in:

STL/stl/inc/xkeycheck.h

Lines 538 to 542 in d43d49a

	#if defined(carries_dependency)
	#define carries_dependency EMIT WARNING C4005
	#error The C++ Standard Library forbids macroizing the attribute-token "carries_dependency". \
	Enable warning C4005 to find the forbidden define.
	#endif // carries_dependency

Note: We're focused on implementing the remaining library-only features in C++23. Until that's done, we will NOT be accepting PRs for C++26 features. (Feature-specific note: we should be able to accept a PR for this before accepting C++26 PRs generally. However, unlike C++26 papers that we've implemented unconditionally, this deprecation will actually need to be guarded by _HAS_CXX26. I updated the compiler and VCRuntime so we can distinguish C++23 from C++26, but still need to update the test matrices, which is a headache/distraction. The matrices need enough attention that I would prefer to tackle them personally.)