[FEA] Add libcudf cudf::get_current_device_resource() wrapper for rmm::get_current_device_resource()

[harrism]

Is your feature request related to a problem? Please describe.
I'm about to undertake yet another change to every function in libcudf that takes an MR parameter. To prevent doing this too many times in the future, I would like to provide a wrapper in libcudf to centralize calls to rmm::get_current_device_resource[_ref]() and an alias for RMM resource_ref type. hopefully this can reduce the number of files that need to change in the future when this functionality changes (e.g. if it moves out of RMM to CCCL).

Describe the solution you'd like
A header, say cpp/include/cudf/utilities/memory_resource.hpp. Please provide suggestions on the best place for this. Contents something like this:

namespace cudf {

using device_async_resource_ref = rmm::device_async_resource_ref;

inline device_async_resource_ref get_current_device_resource_ref() {
  return rmm::get_current_device_resource_ref();
}

inline device_async_resource_ref set_current_device_resource_ref(device_async_resource_ref mr) {
  return rmm::set_current_device_resource_ref(mr);
}

inline device_async_resource_ref reset_current_device_resource_ref() {
  return rmm::reset_current_device_resource_ref();
}

Describe alternatives you've considered

Additional context
rapidsai/rmm#1598

[vyasr]

I would be in favor of this as being something analogous to our wrappers for default stream handling.