[Feat] Merge pull-request branch: feature/model

[seoulsky-field]

Motivation 🤔

• To solve the task, we did some works about modeling and data.

Key Changes 🔑

• Upload model branch to develop

To Reviewers 🙏

• A conflict exists. (about gitignore file)

resolves: Modeling and data part

[yehyunsuh]

Good progress.