Time filters for mustache

[AnglyPascal]

• Add a created_utc in locals
• Add a lambda in ScaliteMustache, that takes the created_utc, and filters the time
  according to the style indicated. The style should be provided something as
  {{#dateFilter}} style {{/dateFilter}}
• Look into how dateFilter might get the created_utc from the context
• The style will be a small yaml one liner:

  {format: yyyy-MM-dd, timezone: Asia/Astana}