this is a generalization of `check` vs. `assert` to other annotations. Not all
annotations are relevant though. Currently, there are more annotation nodes in
the AST that can have a flag `{ tp_only_check }` than was deemed useful in
pub/frama-c#25, but said flag can in fact safely be ignored. Moreover, this
commit only add this flag in the AST, but provides no further mean to set it to
true except for the original `check` keyword (i.e. on `AAssert`). The parser
and the behavior of the plugins that can handle the flag will be updated in
subsequent commits

- removed no-time-info
- removed no-step-info
- removed no-goals-info
- removed no-cache-info
- removed success-only

it seems like part of the issue lies in the fact that the cache might be looked
at from different cwd. Anyways, proposing an absolute location can't hurt.