Data::Traffic: 10G traffic support

Increments the maximum bytes.
Data::Iferr: add the collector for the ifDiscards and the ifErrors

This module can collect the errors and the discards on the network
interfaces.  This can be used by specifying iferr:<ifname> as the
resources into the host_config.
Data::Udp: add the collector for the UDP counters

This module can collect the UDP counters: udpInDatagrams,
udpOutDatagrams, udpInErrors and udpNoPorts.  This can be used by
specifying "udp" as the resources into the host_config.
Data::Iferr: add a test case

Add test case for the module loading.
Data::Udp: add a test case

Add test case for the module loading.
Merge pull request #35 from atzm/features

Features