Include Formatting Helpers for CollectionView and PageBlock

[rzulli]

This pull request adds new helper functions in all CollectionView and in PageBlock with the following capabilities:

• PageBlock:

  • set_full_width(bool) - Enable/disable Full Width option on pages
  • set_small_text(bool) - Enable/disable Small Text option on pages
  • set_page_font(str) - Set Page Font ("default", "mono", "serif")
  • set_page_icon(str) - Set Page Icon from emoji unicode
  • set_page_cover(str, float) - Set page cover and position from image url and float value.
  • set_page_cover_position(float) - Set page cover position from float value.

• CollectionView:

  • update_view_sort(list) - Add/Remove sort to CollectionView from format [["property","direction"],....]
  • update_view_filter(dict) - Add/Remove filter to CollectionView from filter dictionary (format specified below)
  • update_view_aggregation(list) - Add/Remove aggregation to CollectionView from format [["property","aggregator"],...]
  • _update_query2|_update_format - ContextManager helper to submit query2 and format transactions

• BoardView, TableView, ListView, GalleryView, CalendarView, TimelineView:

  • format_properties - Each CollectionView has its own set of properties that can be formatted. Capabilities include:
    • Change visibility, width of properties
    • Change cover properties such as origin (property or page_content or page_cover) , size and aspect (Gallery and Board)
    • Change how many records show on first load (Gallery, List and Timeline)
  • Helpers to update CollectionView settings (eg. Timeline_by|Timeline_by_end from TimelineView, groupBy from BoardView, wrapCell from TableView)

• Minor changes to client request code (submit_transaction) to enable correct request construction

• Smoketests of all new capabilities

As of today, all page and collectionview settings are covered by this pull request.

Thanks!