add example how to configure Gradle C++ Debug

gradle/03-hello-muni-with-debug/build.gradle

@@ -0,0 +1,14 @@
+apply plugin: 'cpp-exe'
+
+
+// Based on http://www.gradle.org/docs/current/userguide/nativeBinaries.html
+binaries.all {
+    if (toolChain in Gcc && buildType == buildTypes.debug) {
+        cppCompiler.args "-g"
+    }
+    if (toolChain in VisualCpp && buildType == buildTypes.debug) {
+        cppCompiler.args '/Zi'
+        cppCompiler.define 'DEBUG'
+        linker.args '/DEBUG'
+    }
+}

gradle/03-hello-muni-with-debug/src/main/cpp/hellomuni.cpp

@@ -0,0 +1,9 @@
+#include <iostream>
+
+using namespace std;
+
+int main() {
+    cout << "Hello FI MUNI!" << endl;
+    return 0;
+}
+