Changes in Lolo

Controller: Changes considering the need for a backpack capacity parsed
to Lolo thru the game Board.

Board: Controls the tokens in the world, thus, creates Lolo and parses
its capacity thru the Controller.

EnergySource: bring EnergySource up, by setting its elementType to 'E',
so Lolo can recognize it.

House: No longer needs java.util.List

Material: Better spacing of (readable) code.

Spot: Some polymorphism for createElement() for different element
creation schemes.