[corr_struct] ParameterSample is now a struct ()

Merging branch 'corr_struct'  into 'main'.

See merge request !1341

Param/Distrib/DistributionHandler.h

@@ -23,7 +23,7 @@
 #include <vector>
 
 class ParameterDistribution;
-class ParameterSample;
+struct ParameterSample;
 
 //! Provides the functionality to average over parameter distributions with weights.
 class DistributionHandler {

Param/Distrib/Distributions.h

@@ -19,7 +19,7 @@
 #include "Param/Node/INode.h"
 #include <vector>
 
-class ParameterSample;
+struct ParameterSample;
 
 //  ************************************************************************************************
 //  interface IDistribution1D

Param/Distrib/ParameterDistribution.h

@@ -20,7 +20,7 @@
 #include <vector>
 
 class IDistribution1D;
-class ParameterSample;
+struct ParameterSample;
 
 //! A parametric distribution function, for use with any model parameter.
 

Param/Distrib/ParameterSample.h

@@ -3,7 +3,7 @@
 //  BornAgain: simulate and fit reflection and scattering
 //
 //! @file      Param/Distrib/ParameterSample.h
-//! @brief     Defines class ParameterSample.
+//! @brief     Defines struct ParameterSample.
 //!
 //! @homepage  http://www.bornagainproject.org
 //! @license   GNU General Public License v3 or higher (see COPYING)

Sim/Scan/AlphaScan.h

@@ -18,7 +18,7 @@
 #include "Sim/Scan/ISpecularScan.h"
 #include <memory>
 
-class ParameterSample;
+struct ParameterSample;
 class IDistribution1D;
 
 //! Scan type with inclination angles as coordinate values and a unique wavelength.