Use same pattern as in metrics_acsl.ml.

[Libc] add all remaining POSIX headers

See merge request frama-c/frama-c!3606

Use Frama-C ocp-indent configuration for WP and Qed

See merge request frama-c/frama-c!3605

These tests have missing specs, so the large amount of warnings is expected.

There are still many missing specifications, but at least parsing should
succeed for strictly POSIX-compliant code.

[Eva] Do not rely on Db.Value for Analysis.self, is_computed and compute.

See merge request frama-c/frama-c!3593

[ivette] move generated API

See merge request frama-c/frama-c!3597

Moves file src/frama-c/api/generator.ml into src/frama-c/api_generator.ml.

[Libc] add non-standard header 'err.h'

See merge request frama-c/frama-c!3532

[Cabs2cil] emit proper error message for unsupported attribute vector_size

See merge request frama-c/frama-c!3409

[Eva] Fixes the gen-api script on macOS.

See merge request frama-c/frama-c!3599

The final computation state [Computed] or [Aborted] is set by [compute_function],
before calling the function [post_analysis] of domains, as those may use
plugins that use Eva results.

[eacsl] Add an example for the Ensuresec european project

See merge request frama-c/frama-c!3474

[Eva] Results: adds optional argument [for_writing] to [eval_address].

See merge request frama-c/frama-c!3589

[analysis-scripts] add 'build' command and several fixes/improvements

See merge request frama-c/frama-c!3508

[cst folding] required by dune tests

See merge request frama-c/frama-c!3590