Add letter Q (#1221)

Author: selamanse

Fonts/3d-diagonal/3d-diagonal.h

@@ -211,16 +211,26 @@ class ThreeD_Diagonal : public Fonts
         }
     */
 
-    /*
-        vs Q()
-        {
-            vs character = getCharGrid();
-
-            //Enter the character grid in ROWS X COLS
+    vs Q()
+    {
+        vs character = getCharGrid(13,18);
+
+        character[0] = "     ,----..      ";
+        character[1] = "    /   /   \\     ";
+        character[2] = "   /   .     :    ";
+        character[3] = "  .   /   ;.  \\   ";
+        character[4] = " .   ;   /  ` ;   ";
+        character[5] = " ;   |  ; \\ ; |   ";
+        character[6] = " |   :  | ; | '   ";
+        character[7] = " .   |  ' ' ' :   ";
+        character[8] = " '   ;  \\; /  |   ";
+        character[9] = "  \\   \\  ',  . \\  ";
+        character[10]= "   ;   :      ; | ";
+        character[11]= "    \\   \\ .'`--\"  ";
+        character[12]= "     `---`        ";
 
-            return character;
-        }
-    */
+        return character;
+    }
 
     /*
         vs R()