Modules should do no work in __init__

[zbynekwinkler]

Having connect call in __init__ fails the main thread responsible for starting everything. Currently used here:

osgar/osgar/drivers/logsocket.py

Lines 79 to 89 in d74f2ed

	class LogTCPStaticIP(LogTCPBase):
	"""
	TCP driver for existing static IP (i.e. SICK LIDAR)
	"""
	def __init__(self, config, bus):
	super().__init__(config, bus)
	try:
	self.socket.connect(self.pair)
	except socket.timeout as e:
	print('Timeout', self.pair)
	raise

Actual hardware should be touched only later during the startup process in the module thread. In the future it will also help us in case we want to start in multiple processes.