Seismic support improvments (#10086)

Adds support for creating seismic sections from well paths and existing intersections.
Adds more stability and user improvements

ApplicationLibCode/ProjectDataModel/Seismic/RimSeismicAlphaMapper.cpp

@@ -60,6 +60,7 @@ void RimSeismicAlphaMapper::setDataRangeAndAlphas( double minVal, double maxVal,
 cvf::ubyte RimSeismicAlphaMapper::alphaValue( double dataValue ) const
 {
     int index = (int)( m_scaleFactor * ( dataValue - m_minValue ) );
+    index     = std::clamp( index, 0, (int)sizeof( m_alphavalues ) - 1 );
 
     return ( cvf::ubyte )( m_alphavalues[index] * 255 );
 }