Adding Javadocs to CounterCommand.java and relevant files (#838)

* adding class javadoc

Co-authored-by: gnembon <41132274+gnembon@users.noreply.github.com>

src/main/java/carpet/fakes/IngredientInterface.java

@@ -7,5 +7,9 @@ import java.util.List;
 
 public interface IngredientInterface
 {
+    /**
+     * Gets all the stacks of the ingredients for a given item recipe. Also used for {@link carpet.helpers.HopperCounter#guessColor}
+     * to guess the colour of an item to display it prettily
+     */
     List<Collection<ItemStack>> getRecipeStacks();
 }

src/main/java/carpet/fakes/RecipeManagerInterface.java

@@ -1,5 +1,6 @@
 package carpet.fakes;
 
+import net.minecraft.item.Item;
 import net.minecraft.recipe.Recipe;
 import net.minecraft.recipe.RecipeType;
 import net.minecraft.util.Identifier;
@@ -8,5 +9,9 @@ import java.util.List;
 
 public interface RecipeManagerInterface
 {
+    /**
+     * Gets all the recipes for a given item. Also used for {@link carpet.helpers.HopperCounter#guessColor} to guess the
+     * colour of an item to display it prettily
+     */
     List<Recipe<?>> getAllMatching(RecipeType type, Identifier output);
 }