Visualise workflows, where they hook in

Currently the user receives close to no information regarding workflows when running ert. One has to look through the configuration file in order to view which workflows are run when. They can also be added randomly in the config file and ran when when they are supposed to be hooked.

E.g. for the following config:

```
HOOK_WORKFLOW WF_A POST_SIMULATION
HOOK_WORKFLOW WF_B PRE_SIMULATION
```

`WF_B` will be run before `WF_A`.

It is possible to hook workflows at multiple points:

```
PRE_SIMULATION
POST_SIMULATION
PRE_UPDATE
POST_UPDATE
PRE_FIRST_UPDATE
```

The status of each workflow should also be displayed, that is likely easier to facilitate when https://github.com/equinor/ert/issues/3437 is completed