Made throw exceptions more understandable

Hello,

This PR is for making throw exceptions more understandable by other users. With this changes, We can print throw exceptions at terminal in a cool way. Would you like to show which command exactly you use for formatting so that i can be more careful about next PRs. (i know you use cmake format but i dunno what the exact command is)

From:

cihat@jarbay51:~/ws_yasmin$ ros2 run yasmin_demos yasmin_demo
yasmin_demo
Executing state FOO
terminate called after throwing an instance of 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >'
[ros2run]: Aborted

To:

cihat@jarbay51:~/ws_yasmin$ ros2 run yasmin_demos yasmin_demo
yasmin_demo
Executing state FOO
terminate called after throwing an instance of 'std::logic_error'
  what():  Outcome (outcome15) does not exist
[ros2run]: Aborted

uleroboticsgroup / yasmin

Made throw exceptions more understandable #24