connector-c-librpl: console client refactoring.

CMakeLists.txt

client/tarantool/tnt.c

client/tc/CMakeLists.txt

client/tc/tc.c

client/tc/tc.h

client/tc/tc_admin.c

client/tc/tc_admin.h

client/tc/tc_cli.c

client/tc/tc_cli.h

client/tc/tc_opt.c

client/tc/tc_opt.h

client/tc/tc_print.c

client/tc/tc_print.h

client/tc/tc_query.c

client/tc/tc_query.h

client/tc/tc_wal.c

client/tc/tc_wal.h

connector/c/include/tarantool/tnt_iter.h

connector/c/include/tarantool/tnt_rpl.h

connector/c/tntrpl/tnt_rpl.c