doc: reorder testpmd commands
doc: reorder testpmd commands

Moved commands in testpmd UG to set queue rates
to match order in testpmd command help.

Created new section "Filters" to match that
same section in testpmd UG, and moved all
commands related to it there.

Signed-off-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>
Acked-by: Bernard Iremonger <233eeff376ad0c06f66f06c5522ea3c4feb30d3b@intel.com>

phermansson/dpdk,phermansson/dpdk,phermansson/dpdk,phermansson/dpdk