Add hex dump option to nanocat
Add hex dump option to nanocat

Signed-off-by: Martin Sustrik <4dd6061be1198639e8b05ce4fd5ead7a0dcaa0f4@250bpm.com>

smithed/nanomsg,JackDunaway/featherweight-nanomsg,potatogim/nanomsg,yan97ao/nanomsg,wirebirdlabs/featherweight-nanomsg,simplestbest/nanomsg,hyperfact/nanomsg,pakozm/nanomsg,pakozm/nanomsg,krafczyk/nanomsg,nirs/nanomsg,reqshark/nanomsg,potatogim/nanomsg,pakozm/nanomsg,yan97ao/nanomsg,zerotacg/nanomsg,zerotacg/nanomsg,smithed/nanomsg,thisco-de/nanomsg,tempbottle/nanomsg,gdamore/mamomsg,TTimo/nanomsg,imp/nanomsg,reqshark/nanomsg,cosin2008/nanomsg.NET,smithed/nanomsg,JackDunaway/featherweight-nanomsg,TTimo/nanomsg,linearregression/nanomsg,krafczyk/nanomsg,pch957/nanomsg,linearregression/nanomsg,ttyangf/nanomsg,yan97ao/nanomsg,simplestbest/nanomsg,wfxiang08/nanomsg,imp/nanomsg,modulexcite/nanomsg,hyperfact/nanomsg,gdamore/mamomsg,TTimo/nanomsg,krafczyk/nanomsg,JackDunaway/featherweight-nanomsg,nirs/nanomsg,pch957/nanomsg,wfxiang08/nanomsg,cosin2008/nanomsg.NET,wfxiang08/nanomsg,ttyangf/nanomsg,wirebirdlabs/featherweight-nanomsg,gdamore/mamomsg,thisco-de/nanomsg,linearregression/nanomsg,snikulov/nanomsg,smithed/nanomsg,simplestbest/nanomsg,reqshark/nanomsg,tempbottle/nanomsg,imp/nanomsg,ttyangf/nanomsg,featherweight/ftw-kernel-nanomsg,wirebirdlabs/featherweight-nanomsg,TTimo/nanomsg,modulexcite/nanomsg,potatogim/nanomsg,hyperfact/nanomsg,snikulov/nanomsg,featherweight/ftw-kernel-nanomsg,ttyangf/nanomsg,tempbottle/nanomsg,pch957/nanomsg,modulexcite/nanomsg,cosin2008/nanomsg.NET,nirs/nanomsg,zerotacg/nanomsg