public static BitString ToBitString <T>(this Memory <T> src) where T : struct => BitString.FromScalars(src);
public static BitString ToBitString <T>(this Vec256 <T> src) where T : struct => BitString.FromScalars(src.ToSpan());
public static BitString ToBitString <T>(this Span <T> src, BitSize?maxlen = null) where T : struct => BitString.FromScalars(src, maxlen);