Wide-integer implements a generic C++ template for extended width
unsigned and signed integral types.
This C++ template header-only library implements drop-in big integer
types such as uint128_t, uint256_t, uint384_t, uint512_t, uint1024_t,
uint1536_t, etc.
These can be used essentially like regular built-in integers.
Corresponding signed integer types such as int128_t, int256_t, and the
like can also be used.
Reuired for net-p2p/transmission 4.1.0.
PR: 292846
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
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