chore(codemanagement): nodeps headers, potentioal library

utils/basic/string_utils.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <algorithm>
+#include <string>
+
+namespace datatypes
+{
+inline bool ASCIIStringCaseInsensetiveEquals(const std::string& left, const std::string& right)
+{
+  auto asciiHigher = [](char c) { return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c; };
+  return left.size() == right.size() &&
+         std::equal(left.begin(), left.end(), right.begin(),
+                    [&asciiHigher](char l, char r) { return asciiHigher(l) == asciiHigher(r); });
+}
+}  // namespace datatypes