Implement ICMP messages decoder/encoder

[Łukasz Jan Niemier]

• 0 Echo Reply [RFC792]
• 3 Destination Unreachable [RFC792]
• 4 Source Quench (Deprecated) [RFC792] [RFC6633]
• 5 Redirect [RFC792]
• 6 Alternate Host Address (Deprecated) [RFC6918]
• 8 Echo [RFC792]
• 9 Router Advertisement [RFC1256]
• 10 Router Solicitation [RFC1256]
• 11 Time Exceeded [RFC792]
• 12 Parameter Problem [RFC792]
• 13 Timestamp [RFC792]
• 14 Timestamp Reply [RFC792]
• 15 Information Request (Deprecated) [RFC792] [RFC6918]
• 16 Information Reply (Deprecated) [RFC792] [RFC6918]
• 17 Address Mask Request (Deprecated) [RFC950] [RFC6918]
• 18 Address Mask Reply (Deprecated) [RFC950] [RFC6918]
• 30 Traceroute (Deprecated) [RFC1393] [RFC6918]
• 31 Datagram Conversion Error (Deprecated) [RFC1475] [RFC6918]
• 32 Mobile Host Redirect (Deprecated) [RFC6918]
• 33 IPv6 Where-Are-You (Deprecated) [RFC6918]
• 34 IPv6 I-Am-Here (Deprecated) [RFC6918]
• 35 Mobile Registration Request (Deprecated) [Simpson] [RFC6918]
• 36 Mobile Registration Reply (Deprecated) [Simpson] [RFC6918]
• 37 Domain Name Request (Deprecated) [RFC1788] [RFC6918]
• 38 Domain Name Reply (Deprecated) [RFC1788] [RFC6918]
• 39 SKIP (Deprecated) [RFC6918]
• 40 Photuris [RFC2521]
• 41 ICMP messages utilized by experimental mobility protocols such as Seamoby [RFC4065]
• 42 Extended Echo Request [RFC8335]
• 43 Extended Echo Reply [RFC8335]
• 253 RFC3692-style Experiment 1 [RFC4727]
• 254 RFC3692-style Experiment 2 [RFC4727]

Question is whether we should implement parsers for deprecated messages.