[FEA]: Memory resources supporting alignments greater than 256-bytes
- Dominant language
- C++
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Description
### Is this a duplicate?
- [x] I confirmed there appear to be no [duplicate issues](https://github.com/NVIDIA/cccl/issues) for this request and that I agree to the [Code of Conduct](CODE_OF_CONDUCT.md)
### Area
libcu++
### Is your feature request related to a problem? Please describe.
Since #7623 we can construct `buffer` objects and specify an alignment parameter. Unfortunately, today, if the requested alignment is wider than 256 bytes we cannot make an allocation and instead CCCL raises an exception.
Wow, that's a wide alignment, you might say, whoever needs that?
If I want to do GPUDirect accelerated IO, my pointers have to be [4096-byte aligned](https://docs.nvidia.com/gpudirect-storage/best-practices-guide/index.html#io-pattern-4)
In rapids today we use RMM's aligned_allocator_adaptor to handle this case, but it perhaps this is general purpose enough that such an adaptor should live in CCCL.
### Describe the solution you'd like
Ideally: support arbitrary alignment in `allocate` and friends.
But probably: provide an adaptor that can handle this.
Relatedly: provide a statically queryable property on memory resources that advertises what alignment guarantees they provide of returned pointers.
### Describe alternatives you've considered
Just use the RMM version.
### Additional context
_No response_
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