Now have more test for the base functionality but need to push render tests and find a way to test the GUI. I've also brought in sol2 for lua integration but not sure what to do with it.

scratchpad/luatest.cpp

@@ -0,0 +1,17 @@
+#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include <iostream>
+
+int main(int, char*[]) {
+  std::cout << "=== opening a state ===" << std::endl;
+
+  sol::state lua;
+  // open some common libraries
+  lua.open_libraries(sol::lib::base, sol::lib::package);
+  lua.script("print('bark bark bark!')");
+
+  std::cout << std::endl;
+
+  return 0;
+}