Allow non-property columns in tables

[#62270260]
Standardize table rows so index starts at 0

[#62270178]
Rm page scrolling behavior.

[#62270178]
Create input element when table cell is click; save value to data

Currently this is for all cells. Next we add authoring to select
specific columns.

[#62270178]
Create column metadata; add editable property

Columns can now be defined either by string or by

{name: x, editable: t/f}

Cells no longer become editable if column is not editable.

[#62270178]
Add ability to author format for user-entered values

[#62270178]