Added Pricing / Packages for boardengine.io

Finally, after talks with potential customers and checking competitors I defined packages and pricing for boardengine.io.

I use the terms "Coffee, Breakfast, All-Inclusive" for the packages to show up the fact that there are a "just the engine" version and the software plus services kind of package.

It doesn't make it easier to explain pricing on a first shot, but I hope the price table is clear enough for a visitor to get at least an idea on my pricing.

What you think?