neofoam: new package (#47214)

* add neofoam package.py

* add Henning as second maintainer

* format file

* fixup! SPDX License entry

* Apply suggestions from code review

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

* Update var/spack/repos/builtin/packages/neofoam/package.py

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

---------

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

var/spack/repos/builtin/packages/neofoam/package.py

+# Copyright Spack Project Developers. See COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class Neofoam(CMakePackage):
+    """NeoFOAM is a WIP prototype of a modern CFD core."""
+
+    homepage = "https://github.com/exasim-project/NeoFOAM"
+    git = "https://github.com/exasim-project/NeoFOAM.git"
+
+    maintainers("greole", "HenningScheufler")
+
+    license("MIT", checked_by="greole")
+
+    version("main", branch="main")
+
+    depends_on("c", type="build")
+    depends_on("cxx", type="build")
+    depends_on("mpi")
+    depends_on("kokkos@4.3.0")