Remove custom escaping for fmstep args

Reverse zorder in ensemble plot

In commit c580f1d
reversed chronologically sorting of ensembles was added
in the  EnsembleSelectionWidget. This affected the drawing order of
iterations, making the newer iterations hide the older iterations when
using the default sorting order. This commit remedies this by reversing
the zorder of plots, so that the first ensembles in the selection list will
be drawn on top of the later ensembles.

(cherry picked from commit 5305871)

Avoid mkdir(parents=True) in save_response

This can impliclity create a corrupted storage if it has been deleted in-flight

(cherry picked from commit 2760247)

Raise error when install_data is missing installed forward model step

Usage of Everest install_data depends on
the forward model steps:
copy_file, copy_directory, symlink
being installed.

Degrade log statement in experiment_server

This is called every 2 second from the everest client polling for states, and implies too much
noise for the INFO level. Changing to DEBUG level.

(cherry picked from commit 48c7e5a)

Remove private scope from _extract_summary_keys

Disable test for mac

Currently failing

Add test for csv export result

Allow more fine-grained subsystem tests

This makes it possible to split the "ert" subsystem tests
into its three parts.

If the selected subsystem is 'ert', it will run the justfile line:
      parallel -j4 ::: 'just ert-gui-tests' 'just ert-cli-tests' 'just ert-unit-tests'
so we just add the possibility of running these three directly.

The subsystem "ert" is kept for backwards compatibility.

(cherry picked from commit 8af0413)

Add logging for obs types and keywords