Update 5c - Hot water pipe tweaks — Prison Architect Steam update #497161

Having read the feedback, we think that we made the hot water pipes too fiddly for many players by requiring every shower head to be wired up to warm water to avert a riot of frigid prisoners. We've now changed the system so that a hot shower is an optional luxury and gives a benefit to prisoners' well-being if you feel generous enough to provide it. Changes: - If a shower head is connected to hot water, this will benefit prisoner's warmth and comfort needs. Cold showers no longer cause frigid effect. - Hot water range increased. - Hot water makes sinks work faster.