JSON with comments (JSONC) support

[antfu]

In some use case, we may need to keep comments inside locale files. Although YAML and JSON5 supports comments, but due to the parser limitation, it's not possible to keep comments on dumping. The current workaround is to make this extension in readonly mode when we need to use comments.

This issue is to support JSONC(microsoft/node-jsonc-parser) from vscode to make comments work well.

Relative to #59
Refer to https://github.com/antfu/vue-i18n-ally#comments-in-yamljson5

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.