Reqrite project as BEd specific.

include/definitions.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "internal/vase/vase.h"
+#include "pch.h"
+
+namespace bed {
+struct fatal_error : std::runtime_error {
+  uint8_t code;
+  fatal_error(std::string msg, uint8_t code)
+      : std::runtime_error(msg), code(code) {}
+};
+
+struct ed_error : std::runtime_error {
+  ed_error(std::string msg) : std::runtime_error(msg) {}
+};
+
+struct BEd;
+} // namespace bed