Workflows: Add interactive editor for taskmaestro workflows

Build, copy and edit taskmaestro workflows in ResInsight and save them as
standard workflow.yaml + input.yaml.

- Python helper: catalog, load, save and export-registered subcommands,
  and run --registered for installed workflows
- C++ definition model with pure edit operations, port type checks,
  config field derivation, static validation and undo/redo
- Installed folder listing registered workflows (read-only, runnable,
  can be duplicated)
- Graph editor dock with task palette, drag-to-connect, context menus,
  automatic layout and debounced live validation
- New/Duplicate/Save/Save As/Rescan commands; unsaved edits run from a
  temporary folder and prompt before being discarded
- Update the design document and the user README

ApplicationLibCode/ProjectDataModel/Workflow/RimWorkflowCaseBinding.cpp

@@ -19,8 +19,11 @@
 #include "RimWorkflowCaseBinding.h"
 
 #include "RimEclipseCase.h"
+#include "RimEclipseCaseTools.h"
 #include "RimTools.h"
 
+#include <QJsonObject>
+
 CAF_PDM_SOURCE_INIT( RimWorkflowCaseBinding, "WorkflowCaseBinding" );
 
 //--------------------------------------------------------------------------------------------------
@@ -42,10 +45,10 @@ QString RimWorkflowCaseBinding::displayValue() const
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-QString RimWorkflowCaseBinding::toYamlValue() const
+QJsonValue RimWorkflowCaseBinding::toJsonValue() const
 {
-    if ( m_case() == nullptr ) return "null";
-    return QString( "{__resinsight_ref__: EclipseCase, case_id: %1}" ).arg( m_case()->caseId() );
+    if ( m_case() == nullptr ) return QJsonValue::Null;
+    return QJsonObject{ { "__resinsight_ref__", "EclipseCase" }, { "case_id", m_case()->caseId() } };
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -57,3 +60,27 @@ QList<caf::PdmOptionItemInfo> RimWorkflowCaseBinding::calculateValueOptions( con
     if ( fieldNeedingOptions == &m_case ) RimTools::eclipseCaseOptionItems( &options );
     return options;
 }
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RimWorkflowCaseBinding::isObjectReference() const
+{
+    return true;
+}
+
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimWorkflowCaseBinding::applySchema( const QJsonObject& fieldSchema )
+{
+    RimWorkflowFieldBinding::applySchema( fieldSchema );
+    const QJsonObject reference = fieldSchema.value( "default" ).toObject();
+    if ( reference.value( "__resinsight_ref__" ).toString() != "EclipseCase" || !reference.contains( "case_id" ) ) return;
+
+    const int caseId = reference.value( "case_id" ).toInt( -1 );
+    for ( RimEclipseCase* eclipseCase : RimEclipseCaseTools::eclipseCases() )
+    {
+        if ( eclipseCase && eclipseCase->caseId() == caseId ) m_case = eclipseCase;
+    }
+}