Well Event: Emit RPTRST/RPTSCHED as proper mnemonic lists

Schedule-level keywords whose OPM ParserRecord is a single ALL-sized item
(RPTRST, RPTSCHED, ...) are not positional — they take a free-form list
of mnemonic tokens like `BASIC=2 DEN ROCKC NORST=1`. Previously each
`keyword_data` entry became its own DeckItem, and OPM emitted them
either as truncated positional values or as a quoted, space-collapsed
single string.

Detect that schema shape in `RifEventKeywordFormatter::formatKeyword`
and pack the user's entries into one RawString DeckItem of mnemonic
tokens: `KEY` for FLAG items, `KEY=VALUE` otherwise.

To distinguish flag mnemonics (`DEN`) from `KEY=1`-style entries, add a
new `FLAG` value to `RimWellEventKeywordItem::ItemType` plumbed end to
end (Python -> GRPC -> Rimc -> storage -> formatter). The Python API
now maps `bool True` to FLAG and silently drops `bool False`.

For positional keywords (WCONHIST etc.) FLAG items have no value to
emit and are rendered as default markers ("1*").

A `rawStringItem` helper is added to `RifOpmDeckTools` so the
mnemonic-list path can produce DeckItems whose OPM output is not
quoted.

ApplicationLibCode/ProjectDataModel/WellEvents/RimKeywordEvent.cpp

@@ -98,6 +98,17 @@ void RimKeywordEvent::addDoubleItem( const QString& name, double value )
     m_items.push_back( item );
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimKeywordEvent::addFlagItem( const QString& name )
+{
+    auto* item = new RimWellEventKeywordItem();
+    item->setItemName( name );
+    item->setFlag();
+    m_items.push_back( item );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationLibCode/ProjectDataModel/WellEvents/RimKeywordEvent.h

@@ -46,6 +46,7 @@ public:
     void addStringItem( const QString& name, const QString& value );
     void addIntItem( const QString& name, int value );
     void addDoubleItem( const QString& name, double value );
+    void addFlagItem( const QString& name );
 
     std::vector<class RimWellEventKeywordItem*> items() const;
 

ApplicationLibCode/ProjectDataModel/WellEvents/RimWellEventKeyword.cpp

@@ -98,6 +98,17 @@ void RimWellEventKeyword::addDoubleItem( const QString& name, double value )
     m_items.push_back( item );
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimWellEventKeyword::addFlagItem( const QString& name )
+{
+    auto* item = new RimWellEventKeywordItem();
+    item->setItemName( name );
+    item->setFlag();
+    m_items.push_back( item );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------

ApplicationLibCode/ProjectDataModel/WellEvents/RimWellEventKeyword.h

@@ -45,6 +45,7 @@ public:
     void addStringItem( const QString& name, const QString& value );
     void addIntItem( const QString& name, int value );
     void addDoubleItem( const QString& name, double value );
+    void addFlagItem( const QString& name );
 
     std::vector<class RimWellEventKeywordItem*> items() const;
 

ApplicationLibCode/ProjectDataModel/WellEvents/RimWellEventKeywordItem.cpp

@@ -116,6 +116,14 @@ void RimWellEventKeywordItem::setDoubleValue( double value )
     m_doubleValue = value;
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimWellEventKeywordItem::setFlag()
+{
+    m_itemType = ItemType::FLAG;
+}
+
 namespace caf
 {
 template <>
@@ -124,6 +132,7 @@ void AppEnum<RimWellEventKeywordItem::ItemType>::setUp()
     addItem( RimWellEventKeywordItem::ItemType::STRING, "STRING", "String" );
     addItem( RimWellEventKeywordItem::ItemType::INTEGER, "INTEGER", "Integer" );
     addItem( RimWellEventKeywordItem::ItemType::DOUBLE, "DOUBLE", "Double" );
+    addItem( RimWellEventKeywordItem::ItemType::FLAG, "FLAG", "Flag" );
     setDefault( RimWellEventKeywordItem::ItemType::STRING );
 }
 } // namespace caf

ApplicationLibCode/ProjectDataModel/WellEvents/RimWellEventKeywordItem.h

@@ -38,7 +38,8 @@ public:
     {
         STRING,
         INTEGER,
-        DOUBLE
+        DOUBLE,
+        FLAG
     };
 
     RimWellEventKeywordItem();
@@ -56,6 +57,7 @@ public:
     void setStringValue( const QString& value );
     void setIntValue( int value );
     void setDoubleValue( double value );
+    void setFlag();
 
 private:
     caf::PdmField<QString>                m_itemName;