Store JSON content as it is

[ikhoon]

When a JSON file is committed to Central Dogma, the content is normalized by Jackson. The approach has a few drawbacks.

• Depending on how ObjectMapper is configured, the field order may change, which makes it harder to compare with the original file.
• If comments are removed during Jackson's normalization process, it makes supporting JSON5 difficult.

For that reason, I suggest storing the original file as it is. The previous motivation for normalizing content was to reduce diff sizes used for replication, but this can be addressed through compression instead. #1192

[ikhoon]

Fixed by #1216