<ranges>: _(Add|Mul)_overflow could be much faster

[JMazurkiewicz]

New functions (added by #3561) _Add_overflow<Int> and _Multiply_overflow<Int> could be much faster when Int is:

1. Standard integer type. MSVC should consider implementing Clang's checked arithmetic builtins (__builtin_add_overflow and __builtin_mul_overflow). This would vastly improve performance and codegen.
   
   Also tracked by DevCom-10326281.

2. Integer-class type. I believe that it is possible to implement those checked operations directly in _Signed128 and _Unsigned128, for example by modifying already existing functions (overflow could be detected during addition/multiplication?).
   
   This requires further investigation.