Temporary private rooms

[LBPHacker]

This is currently not possible to do, for some reason???

tptmp/tptmp/server/plugins/private.lua

Lines 286 to 289 in d58726c

	if room:is_temporary() then
	client:send_server("\ae* Temporary rooms cannot be made private")
	return true
	end

Most likely the reasoning is that the handling of the private property would have to be copied to temporary structures, which is not worth the trouble given that temporary rooms can just be given hard-to-guess names.