feat(reflect-cpp): Switched from glaze -> reflect cpp

A bug was discovered in glaze which prevented valid toml output. We have
switched to toml++ and reflect-cpp. The interface has remained the same
so this should not break any code

build-config/reflect-cpp/include/rfl/io/load_string.hpp

@@ -0,0 +1,28 @@
+#ifndef RFL_IO_LOAD_STRING_HPP_
+#define RFL_IO_LOAD_STRING_HPP_
+
+#include <fstream>
+#include <string>
+
+#include "../Result.hpp"
+
+namespace rfl {
+namespace io {
+
+inline Result<std::string> load_string(const std::string& _fname) {
+  std::ifstream infile(_fname);
+  if (infile.is_open()) {
+    auto r = std::string(std::istreambuf_iterator<char>(infile),
+                         std::istreambuf_iterator<char>());
+    infile.close();
+    return r;
+  } else {
+    return error("Unable to open file '" + _fname +
+                 "' or file could not be found.");
+  }
+}
+
+}  // namespace io
+}  // namespace rfl
+
+#endif