Easier use of make_machdep.py in installed Frama-C

See merge request frama-c/frama-c!4215

turns out clang wants to have a specific CPU when using -target avr

- fix f-string as reported by @maroneze
- --verbose is now reflected in `logging` level as well.

Far from perfect, but at least we now generate a correct dune file in such case.

[e-acsl] remove unnecessary symbolic links

See merge request frama-c/frama-c!4231

These symbolic links cause issues on Cygwin, and they are no longer needed
anway since Dune already copies the files to the right place.

Resolve "Erreur avec multiples instances d'Ivette"

See merge request frama-c/frama-c!4228

[opam] fix release option in opam installation

See merge request frama-c/frama-c!4226

Backport fixes after 27.0

See merge request frama-c/frama-c!4227

[gui] Fixes GUI freeze when a plugin aborts after parsing succeeded.

See merge request frama-c/frama-c!4223

[kernel] Printer_tag: catches Not_found exception when calling Globals.Type.global

See merge request frama-c/frama-c!4222

Fixes crash in Ivette and the GTK GUI on files with undefined type.
No tag is created on undefined types.

[e-acsl] Refman: Version 1.19

See merge request frama-c/frama-c!4209

Generate and install documentation during opam install

See merge request frama-c/frama-c!4208

Fix/andre/doc ptests

See merge request frama-c/frama-c!4203

Update e acsl refman w.r.t. ACSL v1.18

See merge request frama-c/frama-c!4205