These are renamed.
	renamed:    net/ipv4/Makefile -> c_src/net/ipv4/Makefile
	renamed:    net/ipv4/RTM_NEWADDR.c -> c_src/net/ipv4/RTM_NEWADDR.c
ipv4_new_addr was created.
	new file:   c_src/net/ipv4/ipv4_new_addr/Doxyfile
	new file:   c_src/net/ipv4/ipv4_new_addr/doc/dummy.txt
	new file:   c_src/net/ipv4/ipv4_new_addr/src/Makefile
	new file:   c_src/net/ipv4/ipv4_new_addr/src/ipv4_new_addr.c
	new file:   c_src/net/ipv4/ipv4_new_addr/src/ipv4_new_addr.h
	new file:   c_src/net/ipv4/ipv4_new_addr/src/sample.c