Control of Timers in native drivers

Add ability to set up Timer in Channel properties (that supports "request by Timer").

For example HDL reads the Sensor status by Timer:

// Timer: 0 - works once, when the app Starts. 
// If the Timer has been turned on, it stops
IR.GetDevice("HDL-BUS Pro Network").SetTimer("Lux Air:Read", 0)

// Timer: 1 or more - works in interval (sec), all the time
IR.GetDevice("HDL-BUS Pro Network").SetTimer("Lux Air:Read", 5)

// If you want to turn timer off at all, there is 2 variants:
// 1. send -1 in .SetTimer() method
// 2. add the method .StopTimer()
// but with "-1" you can read it as .Timer property, so v1 is preferred