Fix fluid slot role being incorrect for fluid inputs

[Attack8]

#7848

[RaymondBlaze]

It would be better to add an overload accepting the role as parameter and delegate both the input method and output method to that method.

public static IRecipeSlotBuilder addFluidSlot(IRecipeLayoutBuilder builder, int x, int y, RecipeIngredientRole role) {
    return builder.addSlot(role, x, y)
            .setBackground(getRenderedSlot(), -1, -1)
            .setFluidRenderer(1, false, 16, 16) // make fluid take up the full slot
            .addTooltipCallback(CreateRecipeCategory::addPotionTooltip);
}

public static IRecipeSlotBuilder addFluidSlot(IRecipeLayoutBuilder builder, int x, int y, FluidIngredient ingredient) {
    return addFluidSlot(builder, x, y, RecipeIngredientRole.INPUT)
            .addIngredients(NeoForgeTypes.FLUID_STACK, ingredient.getMatchingFluidStacks());
}

public static IRecipeSlotBuilder addFluidSlot(IRecipeLayoutBuilder builder, int x, int y, FluidStack stack) {
    return addFluidSlot(builder, x, y, RecipeIngredientRole.OUTPUT)
            .addIngredient(NeoForgeTypes.FLUID_STACK, stack);
}

[RaymondBlaze]

Using 1 to replace the amount is sufficient enough to make the fluid take up the full slot (JEI will limit the rendered fluid not exceeding the height limit), which should eliminate the need to pass in the fluid ingredient or fluid stack to get the amount, and allows rendering multiple fluid stacks that might not be of the same size in the slot, the current methods can still be left as short cuts.