Small kool showcase examples

[elect86]

As titled:

• added kool library dependency
• switched code in Geometry::recalculateNormals and Icosphere constructor to pointers
• added some pointers and typealias utils
• using kool constructors and methods to allocate buffers

[elect86]

Also, it's important to think about when to run the buffers deallocation, otherwise Scenery leaks

I can investigate also in this direction, if you want