Adapt #736 - optimize JSON serializer of string type

[samchon]

https://dev.to/samchon/good-bye-typescript-is-ancestor-of-typia-20000x-faster-validator-49fi

typia had started from a helper library of fast-json-stringify. At that time, package name was typescript-json, and slogan was convenient JSON serialization boosting without JSON schema definition, but with pure TypeScript type. In such reason, typia still has same logic with fast-json-stringify about string type's JSON serialization.

In today, fast-json-stringify has changed their string type logic, and developer of fast-json-stringify informed me the update. I've measured benchmark with him, and could understand that the new logic is efficient than before. Therefore, updated typia to follow the fast-json-stringify

[samchon]

No problem on test program.