Support to enable color from PLOT_CONTROLLER into plotters that start in B/W

pcbnew/pcbplot.cpp

@@ -384,3 +384,19 @@ bool PLOT_CONTROLLER::PlotLayer( LAYER_NUM aLayer )/*{{{*/
     return true;
 }/*}}}*/
 
+void PLOT_CONTROLLER::SetColorMode( bool aColorMode )
+{
+    if( !m_plotter )
+        return;
+
+    m_plotter->SetColorMode( aColorMode );
+}
+
+bool PLOT_CONTROLLER::GetColorMode()
+{
+    if( !m_plotter )
+        return false;
+
+    return m_plotter->GetColorMode();
+}
+

pcbnew/plotcontroller.h

@@ -25,8 +25,12 @@ public:
     void ClosePlot();
     bool OpenPlotfile( const wxString &aSuffix, PlotFormat aFormat,
                        const wxString &aSheetDesc );
+    
     bool PlotLayer( LAYER_NUM layer );
     
+    void SetColorMode( bool aColorMode );
+    bool GetColorMode();
+
 private:
     /// Option bank
     PCB_PLOT_PARAMS m_plotOpts;