examples/pipeline: support hexadecimal argument in CLI
examples/pipeline: support hexadecimal argument in CLI

This patch allows specification of integer arguments for the
CLI commands in hexadecimal and octal as well as decimal.

Signed-off-by: Churchill Khangar <611dd77c1ed1d7a1964f5f22136f8fd40ad065cc@intel.com>
Acked-by: Cristian Dumitrescu <25468b8a3698eeb3c368247f8635924bb4a1ce2c@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk