[esock|test] Add (traffic) counter (tcp) test cases
[esock|test] Add (traffic) counter (tcp) test cases

Add two simple (traffic) counter test cases, to test
counter actions for normal traffic (send and receive
using send and recv).
One for IPv4 tcp and one for unix-domain-socket stream (tcp).

OTP-15818

jj1bdx/otp,mikpe/otp,g-andrade/otp,emacsmirror/erlang,isvilen/otp,electricimp/otp,getong/otp,lrascao/otp,RoadRunnr/otp,jj1bdx/otp,jj1bdx/otp,potatosalad/otp,ferd/otp,kvakvs/otp,emacsmirror/erlang,jj1bdx/otp,dumbbell/otp,g-andrade/otp,aboroska/otp,emacsmirror/erlang,aboroska/otp,bjorng/otp,vinoski/otp,mikpe/otp,isvilen/otp,bjorng/otp,ferd/otp,RoadRunnr/otp,ferd/otp,erlang/otp,aboroska/otp,dgud/otp,bjorng/otp,isvilen/otp,dgud/otp,lrascao/otp,uabboli/otp,emacsmirror/erlang,ferd/otp,getong/otp,potatosalad/otp,RoadRunnr/otp,dumbbell/otp,vinoski/otp,rlipscombe/otp,vinoski/otp,getong/otp,g-andrade/otp,getong/otp,mikpe/otp,getong/otp,dgud/otp,vinoski/otp,potatosalad/otp,aboroska/otp,dgud/otp,emacsmirror/erlang,getong/otp,uabboli/otp,jj1bdx/otp,RoadRunnr/otp,mikpe/otp,vladdu/otp,vladdu/otp,dgud/otp,dumbbell/otp,electricimp/otp,bjorng/otp,potatosalad/otp,vinoski/otp,lrascao/otp,RoadRunnr/otp,mikpe/otp,rlipscombe/otp,kvakvs/otp,RoadRunnr/otp,emacsmirror/erlang,mikpe/otp,RoadRunnr/otp,getong/otp,dumbbell/otp,rlipscombe/otp,g-andrade/otp,lrascao/otp,g-andrade/otp,aboroska/otp,erlang/otp,rlipscombe/otp,dumbbell/otp,jj1bdx/otp,rlipscombe/otp,bjorng/otp,getong/otp,electricimp/otp,isvilen/otp,emacsmirror/erlang,erlang/otp,kvakvs/otp,lrascao/otp,dgud/otp,isvilen/otp,uabboli/otp,erlang/otp,g-andrade/otp,emacsmirror/erlang,jj1bdx/otp,uabboli/otp,electricimp/otp,kvakvs/otp,uabboli/otp,dumbbell/otp,dumbbell/otp,ferd/otp,bjorng/otp,vladdu/otp,ferd/otp,g-andrade/otp,vladdu/otp,aboroska/otp,electricimp/otp,g-andrade/otp,ferd/otp,getong/otp,vinoski/otp,lrascao/otp,g-andrade/otp,electricimp/otp,vladdu/otp,potatosalad/otp,vinoski/otp,rlipscombe/otp,mikpe/otp,electricimp/otp,aboroska/otp,uabboli/otp,kvakvs/otp,rlipscombe/otp,lrascao/otp,erlang/otp,dgud/otp,getong/otp,kvakvs/otp,potatosalad/otp,bjorng/otp,potatosalad/otp,rlipscombe/otp,RoadRunnr/otp,jj1bdx/otp,vladdu/otp,dgud/otp,jj1bdx/otp,bjorng/otp,mikpe/otp,vladdu/otp,bjorng/otp,kvakvs/otp,erlang/otp,dumbbell/otp,electricimp/otp,potatosalad/otp,dgud/otp,uabboli/otp,isvilen/otp,isvilen/otp,jj1bdx/otp,bjorng/otp,rlipscombe/otp,vladdu/otp,dgud/otp,isvilen/otp,erlang/otp,kvakvs/otp,dumbbell/otp,lrascao/otp,g-andrade/otp,mikpe/otp,erlang/otp,vinoski/otp,emacsmirror/erlang,vladdu/otp,vinoski/otp,emacsmirror/erlang,ferd/otp,kvakvs/otp,mikpe/otp,electricimp/otp,lrascao/otp,aboroska/otp,isvilen/otp,aboroska/otp,RoadRunnr/otp,dumbbell/otp,uabboli/otp,erlang/otp,potatosalad/otp,vinoski/otp,isvilen/otp,ferd/otp,uabboli/otp,potatosalad/otp,rlipscombe/otp,erlang/otp