* Start adding Nek5000 package
* Add tools to install: genmap, prenek, postnek
* Address comments by @davydden
* Use install_tree (thanks @junghans) and polish
* Update url
* Fix flake formatting errors
* Change F77 and CC compilers
Apparently spack compilers can't be called outside spack and we
have an underscore test in our Nek5000/core/makenek.inc file which
calls F77 compiler.
* Add support for visit and profiling options
* Fix a typo
* Fix a typo
* Remove the C check
* Add visit variant
* Update the install of int_tp tool
* Let MAXNEL to be set during installation
9a595ca312