#14772 Python: Add snapshot export object methods and forward exportSnapshots to them

- Add RimViewWindow_exportSnapshot on RimViewWindow (3D views and
  plots) with explicit ExportFolder, Prefix, Width, Height and
  FileFormat parameters. Generated as ViewWindow.export_snapshot().
- Add RimProject_exportSnapshots for exporting all views and/or plots
  with a ContentType parameter. Generated as Project.export_snapshots().
- Add RiaDefines::SnapshotFileFormat and SnapshotContentType enums,
  registered as Python StrEnums.
- Extract single-item exportSnapshotOfView()/exportSnapshotOfPlot()
  from the RicSnapshotAll*ToFileFeature loops so the object methods
  and the legacy loops share the implementation.
- RicfExportSnapshots resolves the export folder from the command file
  executor and forwards to the object methods.

Python: the hand-written ViewWindow.export_snapshot() wrapper is
removed (generated method is compatible). PlotWindow.export_snapshot()
and Project.export_snapshots() keep their legacy argument names
(file_prefix, output_format, snapshot_type, plot_format) as deprecated
aliases. Case.export_snapshots_of_all_views() is deprecated in favor
of View.export_snapshot().

Also fix Case.views(), which compared the view id to the case id and
therefore never returned any views.

GrpcInterface/Python/rips/view.py

@@ -222,25 +222,3 @@ def visible_cells(self, time_step=0):
     finally:
         # Clean up temporary key from key-value store
         project.remove_key_values(visibility_key)
-
-
-@add_method(ViewWindow)
-def export_snapshot(self, prefix="", export_folder="", width=-1, height=-1):
-    """Export snapshot for the current view
-
-    Arguments:
-        prefix (str): Exported file name prefix
-        export_folder(str): The path to export to. By default will use the global export folder
-    """
-    case_id = self.case().id
-    return self._execute_command(
-        exportSnapshots=Cmd.ExportSnapshotsRequest(
-            type="VIEWS",
-            prefix=prefix,
-            caseId=case_id,
-            viewId=self.id,
-            exportFolder=export_folder,
-            width=width,
-            height=height,
-        )
-    )