Create a minimal interactive shell

shell/main.cpp

@@ -0,0 +1,16 @@
+#include <cstdlib>
+#include <unistd.h>
+#include "elna/interactive.hpp"
+
+int main()
+{
+    if (!elna::enable_raw_mode())
+    {
+        std::perror("tcsetattr");
+        return EXIT_FAILURE;
+    }
+    std::atexit(elna::disable_raw_mode);
+    elna::loop();
+
+    return EXIT_SUCCESS;
+}