Changes

Add SpaceAwareAccessor

This mdspan accessor wraps otehr accessors, and adds memory space
accessibility checks.
 (commit: afbff6c)

Add basic tests for SpaceAwareAccessor
 (commit: b2046a4)

Use SpaceAwareAccessor in View mdspan-interop
 (commit: e2d68fd)

Add specialization of SpaceAwareAcc for AnonymousSpace

That version is convertible into all other variants
 (commit: a6b95e9)

Address review comments
 (commit: 34db518)

SpaceAwareAccessor: fix issues (no-unique-address, is_empty)

CI serviced these. Also turn off tests if mdspan is not enabled
 (commit: 6c78f4b)

Structured binding support for Kokkos::complex (#7040)

* Added structured binding support to Kokkos::complex, as per P2819R2

* Fix clang-format issues

* In complex_get, Fix for compilers that need a return in the impossible situation
where I >= 2

* Workaround for VS16 not liking casting to r-value reference to const

* Changed the comment on P2819 to clearly state that
the WG21 paper has been voted into the draft for C++26

* Changed static_cast<ComplexForwardingRef&&>(z) to
std::forward<CompleForwardingRef>(z)

* Changed complex structured bindings test to be performed on the device

* Removed original complex structured bindings test
Fixed d_results complex structured bindings test

* Reworked complex structured bindings device test to get around various
compiler issues

* Fixed complex structured binding tests to check host (and not device)
results on the host

* Reworked to make complex::get non-hidden friends

* Cleanup

* Changed the return type tests for get(complex) to workaround
a CUDA 11.6 issue where is_same_v is making a host call from
a device function even though it is an unevaluated context.

* Moved the get() return reference type checks into a function to get
around an issue with icpc and static inline class variables.

* Removed friend get() functions.
Removed static helper function get_ref().
Removed forward declarations of get() functions.
Added two friend get() declarations (not definitions as to avoid hidden
friends) that are an exact match to the free functions (two template
parameters), as there is no public interface to get const l/r value references
to re_ and im_ (real() and imag() are specified to return by value in
the case of const references).
An alternative to friendship would be to use const_cast inside the get()
methods taking const r/l value references, but I'd rather
not cast unless strictly necessary.
 (commit: 2678194)

Move `layout_iterate_type_selector` into Impl namespace (#7076)

* Move `layout_iterate_type_selector` into Impl namespace

  - Address issue #6923
  - Copied the `layout_iterate_type_selector` into the Impl namespace
  - Deprecated the `layout_iterate_type_selector` in parent namespace

* Wrap deprecated layout_iterate_type_selector in appropriate #ifdef

* Used alias instead of duplicated code to remove warnings

* Drop unnecessary comment

---------

Co-authored-by: Damien L-G <dalg24+github@gmail.com>
 (commit: 708abe2)

Use correct includes for spaceawareaccessor
 (commit: 7b962ce)

fix refcount exception safety (#6289)

Addresses issue #6289
 (commit: 1e14d04)

Complex needs a tuple include
 (commit: cf14f1c)