CheckBasicStyle: Check number of empty lines between functions (#4267)

Add check for number of empty lines between functions and fix the corresponding failures

src/CraftingRecipes.cpp

@@ -358,6 +358,7 @@ void cCraftingRecipes::LoadRecipes(void)
 
 
 
+
 void cCraftingRecipes::ClearRecipes(void)
 {
 	for (cRecipes::iterator itr = m_Recipes.begin(); itr != m_Recipes.end(); ++itr)