Added config for Particles

-Added items into ColorConig
	-particle_fire_count 	= number of Particles spawned per Tile hit
	-particle_decay_min/max = how fast Particles fade
	-particle_speed_min/max = the speed of particles
-Particle speed and Particle decay will be a ranom value between min and
max
-Added loading of the above items into ColorConfigLoader
-Added pragma once to SDLColorHelper.h as this was missing
-Added method for setting speed and decay in Particle. The method takes
a min and a max and sets the data member to the result of the random
operation