Add font family

Fix define macros

src/libslic3r/TextConfiguration.hpp

@@ -54,12 +54,23 @@ struct FontProp
     int line_gap = 0;
     // Precision of lettter outline curve in conversion to lines
     float flatness = 2.0;
-    // Height of letter [in mm]
-    float size_in_mm = 10;
     // Z depth of text [in mm]
     float emboss = 5;
+    
+    //////
+    // Duplicit data to wxFontDescriptor
+    //////
+
+    // Height of letter [in mm], 
+    // duplicit to wxFont::PointSize
+    float size_in_mm = 10;
+    // Define type of font
+    // duplicit to wxFont::Family
+    std::string family = "";
+
     // TODO: add enum class Align: center/left/right
 
+
     FontProp() = default;
 };