Add a player thermal buffer multiplier

[Istar-Eldritch]

There should be a way for server admins to regular how fast players can acquire thermal buff.

[Istar-Eldritch]

This can be changed by adding to init.c

modded GameConstants
{
	const float ENVIRO_PLAYER_HEATBUFFER_DECREASE		= 0.34;		//! Multiplier of enviro temperature for heat buffer decrease (after its static timer runs out)
	const float ENVIRO_PLAYER_HEATBUFFER_INCREASE		= 0.51;		//! How much heat buffer increases per one enviro tick
	const float ENVIRO_PLAYER_HEATBUFFER_TICK			= 0.011;	//! Heat buffer static timer tick (set for 2s enviro tick, 180s to 1.0)
}