Cell Edge Results: disable by default, skip loading when inactive

[Copilot]

Cell Edge Results eagerly loaded all static results matching the cell-edge base name (MULTNUM, MULTX/X-/Y/Y-/Z/Z-) even when the feature was disabled, wasting I/O and memory on every view load.

Changes

• RimCellEdgeColors.cpp: Changed m_enableCellEdgeColors default from true → false
• RimCellEdgeColors::loadResult(): Added early-out when disabled — no results are fetched until the user explicitly enables Cell Edge Results

void RimCellEdgeColors::loadResult()
{
    if ( !m_enableCellEdgeColors() ) return;   // <-- new guard
    if ( !m_reservoirView->currentGridCellResults() ) return;
    // ...
}

The existing setActive(false) call in RimEclipseViewCollection remains as explicit documentation of intent, and is now consistent with the new default.

• Fixes [bug]: Cell Edge Results loaded even if disabled #14520

[jorgenherje]

Tested and looks good.