Added test-client.sh responsible to test the client strength

This script writes results to standard output if it does not receive option
and "test-client.log" if "--logfile" is passed.

Signed-off-by: Thiago H. S. Picharski <thsp08@c3sl.ufpr.br>
Acked-by: Diego Giovane Pasqualin <dgp06@c3sl.ufpr.br>
Signed-off-by: Danilo K. S. Yorinori <danilok@c3sl.ufpr.br>