Added main menu placeholder

src/UI/ui.cpp

@@ -0,0 +1,10 @@
+#include <string>
+#include <iostream>
+
+namespace UI {
+	char[] ::mainMenu = "Hey look, it's the main menu!";
+
+	void displayMainMenu() {
+		std::cout << UI::mainMenu << std::endl;
+	}
+}

src/main.cpp

@@ -1,7 +1,5 @@
-#include <iostream>
-#include "strings/strings.cpp"
+#include "ui/ui.cpp"
 
 int main() {
-    std::cout << getString() << std::endl;
-    return 0;
+	UI::displayMainMenu();
 }

src/strings/strings.cpp

@@ -1,5 +0,0 @@
-#include <iostream>
-
-std::string getString() {
-	return "Hello World";
-}