Add SDK v1.0.0

vendor/tiny_ansi/include/tiny_ansi.h

@@ -0,0 +1,13 @@
+#pragma once
+// Vendored header-only helper (vendor/tiny_ansi/) -- a stand-in for the
+// kind of tiny, buildless third-party header you'd wrap with
+// add_vendor_header_only() instead of writing yourself.
+#include <string>
+
+namespace tiny_ansi {
+
+inline std::string green(const std::string& s) {
+    return "\033[32m" + s + "\033[0m";
+}
+
+}  // namespace tiny_ansi