Iterate all children test suites

[alvarogarcia7]

Execute all children test suites after the user suggests a test suite.

Examples with test suites:

run_test "Executing at first level" "/perf"

will execute:

Executing at first level with pattern /perf
/perf/symmetric/sha2/compare         
/perf/symmetric/sha2/rand            
/perf/symmetric/sha3/compare         
/perf/symmetric/sha3/rand            
/perf/asymmetric/x25519/compare      
/perf/asymmetric/x25519/rand         
/perf/asymmetric/NIST/compare        
/perf/asymmetric/NIST/rand    

run_test "Executing at second level" "/perf/symmetric"

will execute:

Executing at second level with pattern /perf/symmetric
/perf/symmetric/sha2/compare         
/perf/symmetric/sha2/rand            
/perf/symmetric/sha3/compare         
/perf/symmetric/sha3/rand       

Also works with the "full path" of the test:

run_test "Executing at leaf level" "/perf/symmetric/sha2/rand"

will execute

Executing at leaf level with pattern /perf/symmetric/sha2/rand
/perf/symmetric/sha2/rand      

Note:

run_test

does

./test_setup $suite | grep " OK " | cut -d "[" -f1

to make the log reproducible (removing the seed and the time to execute)