add os.getTimeout() function to ask how long the scheduler waits between running processes

module/sched.lua

@@ -58,6 +58,9 @@ function os.getenv(k) -- gets a process' *k* environment variable
   return tTasks[cPid].e[k]
  end
 end
+function os.getTimeout()
+ return nTimeout
+end
 function os.setTimeout(n)
  if type(n) == "number" and n >= 0 then
   nTimeout = n