Add nozzle diameter parameter for UltiGCode in preperation for some things.

src/fffProcessor.h

@@ -344,6 +344,8 @@ private:
                 gcode.writeComment("TIME:<__TIME__>");
                 gcode.writeComment("MATERIAL:<FILAMENT>");
                 gcode.writeComment("MATERIAL2:<FILAMEN2>");
+                gcode.writeComment("NOZZLE_DIAMETER:%f", float(config.nozzleSize) / 1000);
+                gcode.writeComment("NOZZLE_DIAMETER2:%f", float(config.nozzleSize) / 1000);
             }
             gcode.writeCode(config.startCode.c_str());
             if (gcode.getFlavor() == GCODE_FLAVOR_BFB)

src/settings.cpp

@@ -18,6 +18,7 @@ ConfigSettings *ConfigSettings::config = NULL;
 ConfigSettings::ConfigSettings()
 {
     config = this;
+    SETTING(nozzleSize, 400);
     SETTING(layerThickness, 100);
     SETTING(initialLayerThickness, 300);
     SETTING(filamentDiameter, 2890);

src/settings.h

@@ -126,6 +126,7 @@ private:
     std::vector<_ConfigSettingIndex> _index;
 public:
     static ConfigSettings *config; // allow access to config settings from everywhere
+    int nozzleSize;
     int layerThickness;
     int initialLayerThickness;
     int filamentDiameter;