added python Archive reader
Added stream-device-ioc for EPT-hallprobe readout

	new file:   iocs/epthallprobe/.gitignore
	new file:   iocs/epthallprobe/epthallprobe.cmd
	new file:   iocs/epthallprobe/epthallprobe.db
	new file:   iocs/epthallprobe/epthallprobe_ioc.sh
	new file:   iocs/epthallprobe/epthallprobe_serial.proto
	new file:   iocs/epthallprobe/screenrc