tarantoolctl: support user level configuration file
tarantoolctl: support user level configuration file

~/.config/tarantool superseeds /etc/default, not augments it

guard163/tarantool,rtsisyk/tarantool,guard163/tarantool,KlonD90/tarantool,dkorolev/tarantool,mejedi/tarantool,ocelot-inc/tarantool,Sannis/tarantool,KlonD90/tarantool,mejedi/tarantool,condor-the-bird/tarantool,rtsisyk/tarantool,Sannis/tarantool,guard163/tarantool,guard163/tarantool,KlonD90/tarantool,dkorolev/tarantool,vasilenkomike/tarantool,KlonD90/tarantool,dkorolev/tarantool,condor-the-bird/tarantool,Sannis/tarantool,ocelot-inc/tarantool,vasilenkomike/tarantool,vasilenkomike/tarantool,KlonD90/tarantool,rtsisyk/tarantool,vasilenkomike/tarantool,condor-the-bird/tarantool,ocelot-inc/tarantool,mejedi/tarantool,condor-the-bird/tarantool,Sannis/tarantool,dkorolev/tarantool,rtsisyk/tarantool,Sannis/tarantool,condor-the-bird/tarantool,mejedi/tarantool,guard163/tarantool,ocelot-inc/tarantool,vasilenkomike/tarantool,dkorolev/tarantool