Merge pull request #3273 from reshmapattan/upstream_dpdk_telemetry

dpdk_telemetry plugin: add plugin for DPDK metrics via DPDK Telemetry library

diff --cc Makefile.am
Simple merge

diff --cc README
Simple merge

diff --cc configure.ac
Simple merge

diff --cc src/collectd.conf.in
Simple merge

diff --cc src/collectd.conf.pod
Simple merge

diff --cc src/types.db
Simple merge