* Fix +rocm variant, to ensure correct dependencies on ROCm packages
and use of AMD LLVM
* Add a +pshm variant for comm=gasnet to enable fast shared-memory
comms between co-locales
* Add logic to ensure we get the native CXI libfabric network provider
on Cray EX
* Expand dependency type for package modules to encompass runtime
dependencies
* Factor logic for setting (LD_)LIBRARY_PATH and PKG_CONFIG_PATH of
runtime dependencies
* Workaround issue #44746 that causes a transitive dependency on lua
to break SLURM
* Disable nonfunctional checkChplDoc test
* Annotate some variants as conditional, to improve spack info output
and reduce confusion
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Co-authored-by: Dan Bonachea <dobonachea@lbl.gov>
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