Update editable table options to allow finer configuration around add, reorder, delete

[nfourtythree]

Description

This PR adds finer grain control over when the add, reorder and delete controls are shown.

Currently, the staticRows property is the main factor in determining when the reorder handle and delete buttons. In its original state, this meant that it was not possible to have a table that simply allowed the addition and deletion of rows but not reordering

staticRows has been dropped in favour of three new properties allowAdd, allowReorder and allowDelete. These boolean properties are self-explanatory when it comes to the functionality they enable/disable. The defaults for these settings are false so when nothing is passed no additions, reordering or deletion will be allowed, this is a slight change in behaviour from version 3.

Checklist

• Keep default behaviour if nothing is passed
• Respect the static option to display as a "static" field
• Check internal uses of the field macro and update with new parameters (where required)
• Check internal uses of CP helper method and update with new parameters (where required)
• Update changelog
• Upgrade documentation