New Templates to CCs and more CC improvements

change log

• Added a monospace font for CC ui, and corrected newline character count (#1092)
• Added HasKey property on dict and sdict, which returns a boolean instead of the old way of getting the complete property (#1090)
• Added a template for counting pinned messages in a channel getPinCount channel (#1069)
• Added a templates to pin / unpin messages in a channel (#1065)
  • pinMessage channel messageID
  • unpinMessage channel messageID
• Switched to using go's native cbrt function in cbrt template (#1085)
• Added caching for invite generation because of discord rate limites (#897)
• Added CC templates for better parsing of time (#1096)
  • snowflakeToTime converts a snowflake into a time string
  • loadLocation sets a timezone for the parsed time
  • weekNumber returns the week number for a datetime.