Add ostream operator overload for Bureaucrat and clean up main function

ex00/inc/Bureaucrat.hpp

@@ -2,6 +2,7 @@
 
 #include <string>
 #include <exception>
+#include <iostream>
 
 #define HIGHEST_GRADE 1
 #define LOWEST_GRADE 150
@@ -38,3 +39,5 @@ public:
 		const char *what() const throw();
 	};
 };
+
+std::ostream &operator<<(std::ostream &os, const Bureaucrat &bureaucrat);

ex00/src/Bureaucrat.cpp

@@ -87,4 +87,10 @@ const char * Bureaucrat::GradeTooHighException::what() const throw()
 const char * Bureaucrat::GradeTooLowException::what() const throw()
 {
     return "Grade too low!";
-}
+}
+
+std::ostream &operator<<(std::ostream &os, const Bureaucrat &bureaucrat)
+{
+    std::cout << bureaucrat.getName() << ", bureaucrat grade " << bureaucrat.getGrade();
+    return os;
+}

ex00/src/main.cpp

@@ -15,6 +15,7 @@ int main (void)
     {
         std::cerr << "Caught exception: " << e.what() << std::endl;
     }
+
     try 
     {
         Bureaucrat alice("alice", 151); // This should also throw an exception
@@ -23,6 +24,7 @@ int main (void)
     {
         std::cerr << "Caught exception: " << e.what() << std::endl;
     }
+
     try 
     {
         Bureaucrat charlie("charlie", 1);
@@ -32,6 +34,7 @@ int main (void)
     {
         std::cerr << "Caught exception: " << e.what() << std::endl;
     }
-    
+    std::cout << jan << std::endl;
+    std::cout << copy << std::endl;
 
 }