Added clog test

projects/SelfTest/UsageTests/Misc.tests.cpp

@@ -148,8 +148,8 @@ TEST_CASE( "looped tests", "[.][failing]" ) {
 
 TEST_CASE( "Sends stuff to stdout and stderr", "[.]" ) {
     std::cout << "A string sent directly to stdout" << std::endl;
-
     std::cerr << "A string sent directly to stderr" << std::endl;
+    std::clog << "A string sent to stderr via clog" << std::endl;
 }
 
 TEST_CASE( "null strings" ) {