arp working

 - send ip/udp/icmp/arp packets
 - recv/answer to arp packets
working arp/icmp/udp

 - ping works but drops packets (8th)
 - udp data exchange works
 - arp/cache requests work

 . need to implement an allocator for packet buffers
ignore installer tools to prevent leaking working vm names
fixed ip pkt fragment init

 . traffic is working with small packets
fixed udp receive size (header/packet read)

 when sending huge data with a single scapy packet
 scapy set udp header with final size, send one packet with
 max mtu and then on next packets, do not put udp header but direct
 data

 we take care to read the correct length of received data in the current
 packet

 however a socket api would send several udp packets with correctly
 set udp header length
basic network stack

 + gdb stub works over udp
 + pkts are read as for dbgp, on vmexit threshold

 - need to implement a proper net stack (netbuf, queues, dynamic alloc)
 - ip fragmentation is not handled yet (will be with netbuf)
 - net iface interrupts are not implemented (better than vmexit threshold)
fixed rfc checksum
added proc2 new bits, clean msr proc based
fixed flush
use amoco as a disasm in python client
fixed uninitialiazed default active_cr3
return err_mem after gdb_translate() failure
manage gdb protocol err in client
fixed stack trace tool (pretty print)
fixed bitfields
added xsetbv handling
do not trap #NMI (reversable)
filter pci access through io to hide netcard
fixed README
fixed multiboot option handling