#14484 Orion Events: parse and apply data filter

Add a typed FILTER declaration to the ORIONEVENTS 2.0 grammar, e.g.
FILTER POROPERM = "PORO > 0.4 AND PERMX > 100.0". A PERFORATION event
references it with FILTER=POROPERM or supplies an inline quoted
expression. When applied, each used filter is materialized as a
case-level combined data filter (one property filter per term, one-sided
inclusive bounds, AND/OR combine mode) and attached to the perforation.

Unqualified result names are searched in STATIC_NATIVE, DYNAMIC_NATIVE
then GENERATED results; a TYPE. qualifier restricts the search. Missing
results raise before any event is applied. apply_orion_document gains an
optional case= parameter defaulting to the project's first case.

RimWellEventPerf carries a RimCellFilter ptr-field with scriptable
AddFilter/cell_filter methods, and the filter is copied onto the
RimPerforationInterval when the timeline materializes completions.

ApplicationLibCode/ProjectDataModelCommands/RimcWellEventPerf.h

@@ -0,0 +1,57 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2026- Equinor ASA
+//
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+//
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include "cafPdmObjectHandle.h"
+#include "cafPdmObjectMethod.h"
+#include "cafPdmPtrField.h"
+
+#include <QString>
+
+class RimCellFilter;
+
+//==================================================================================================
+/// Set the cell filter associated with this perforation event. Replaces any existing filter.
+//==================================================================================================
+class RimcWellEventPerf_addFilter : public caf::PdmVoidObjectMethod
+{
+    CAF_PDM_HEADER_INIT;
+
+public:
+    RimcWellEventPerf_addFilter( caf::PdmObjectHandle* self );
+
+    std::expected<caf::PdmObjectHandle*, QString> execute() override;
+
+private:
+    caf::PdmPtrField<RimCellFilter*> m_filter;
+};
+
+//==================================================================================================
+/// Returns the cell filter associated with this perforation event, or null if none.
+//==================================================================================================
+class RimcWellEventPerf_cellFilter : public caf::PdmObjectMethod
+{
+    CAF_PDM_HEADER_INIT;
+
+public:
+    RimcWellEventPerf_cellFilter( caf::PdmObjectHandle* self );
+
+    std::expected<caf::PdmObjectHandle*, QString> execute() override;
+    QString                                       classKeywordReturnedType() const override;
+};