Replaced by https://github.com/mpsd-computational-science/spack/commit/ebec877c100709026d297f0694c4def2eaf448c2

Several fixes for compiler installation

See merge request !6

- install intel compiler using on toolchain gcc
- load compiler before searching (avoids problems with oneapi v2 layout)
- disable updates in compilers.yaml

Switch to jinja templating

See merge request !5

Deprecate toolchain metamodules and extend octopus-dependencies

Closes #4

See merge request !2

Corrected include directives for icc

See merge request !4

Conda installation

Closes #3

See merge request !3

Turns out the `no include` directives cause ICC to not even look for its
own internals

Additionally, we need to point it to the correct place in our systems
where to find the glibc internal includes, otherwise compilation will
fail