DHCP - by Benjamin (c75a889a50246c22e35f5a524f27e1a8bea7f83b)

Conflicts:
	src/applications/dhcp/DHCPClient.cc
	src/applications/dhcp/DHCPClient.h
	src/applications/dhcp/DHCPServer.cc
	src/applications/dhcp/DHCPServer.h
	tests/fingerprint/omnet4/examples.csv
	tests/fingerprint/omnet5/examples.csv
fixes for DHCP in integration
-- fingerprints changed
DHCP2 test fixed for EV changes
DHCP lifecycle tests fixed for omnetpp 5.0