Add entry point and debug texts

TestGame/src/TestGame.cpp

@@ -1,7 +1,10 @@
 // TestGame main file
+#define NFENTRY
 #include "nf.h"
 
-int main(int argc, char* argv[]) {
-    nf::startEngine();
-    return 0;
+namespace nf {
+    EngineConfig configureEngine(CommandLineArguments cmdArgs) {
+        EngineConfig config;
+        return config;
+    }
 }