-explain also indicates if the option used is an alias for another option.

Uses a hashtbl from all option names to options, instead of browse all frama-c
options to find the ones from the command-line.

[Eva] New option -eva-alloc-builtin to configure allocation builtins

See merge request frama-c/frama-c!2617

Instead of using several builtins, registers only one realloc builtin whose
behavior depends on the -eva-alloc-builtin option.

Only one builtin for the allocation functions.

Uses the eva_allocate annotation in the tests that used several builtins for
different calls to the same function.

Concerns malloc, __fc_vla_alloc, alloca and calloc: instead of using several
builtins for each function, registers only one builtin by function, whose
behavior depend on the -eva-alloc-builtin option.

No semantic change in the code.

Function [alloc_abstract] always uses the stack from [call_stack_no_wrappers].

[ivette] fix controller history

Closes #832

See merge request frama-c/frama-c!2664

[Eva] Supports the ACSL mathematical operator \abs.

See merge request frama-c/frama-c!2667

[Ivette] Adds some cosmetic options to the AST view

See merge request frama-c/frama-c!2651