Ports xenomedes' fusion rework

[jupyterkat]

from base BeeStation/BeeStation-Hornet#2614

Dm side changes:

/proc/fusion_ball(datum/holder, reaction_energy, standard_energy)
	var/turf/open/location
	if (istype(holder,/datum/pipeline)) //Find the tile the reaction is occuring on, or a random part of the network if it's a pipenet.
		var/datum/pipeline/fusion_pipenet = holder
		location = get_turf(pick(fusion_pipenet.members))
	else
		location = get_turf(holder)
	if(location)
		if(prob(PERCENT(((PARTICLE_CHANCE_CONSTANT)/(reaction_energy-PARTICLE_CHANCE_CONSTANT)) + 1))) //Asymptopically approaches 100% as the energy of the reaction goes up.
			location.fire_nuclear_particle(customize = TRUE, custompower = standard_energy)
		radiation_pulse(location, max(2000 * 3 ** (log(10,standard_energy) - FUSION_RAD_MIDPOINT), 0))

[Putnam3145]

note: this was actually merged with above