Add ArrayColumn (BETA)

[lrljoe]

This adds a new ArrayColumn This is to be used when you have an array of data for a row, but want to display it. It requires

• a "data" input (i.e. the array to be parsed per row)
• an outputFormat for each item within that array

You may also define:

• a separator between each item (defaults to
  if not specified) e.g:

  ArrayColumn::make('Locations')
  ->data(fn($value, $row) => ($row->locations))
  ->outputFormat(fn($i, $v) => "<a href='loc/".$v->id."'>".$v->name."</a>")
  ->separator('<br />'),

THIS IS BETA ONLY, there are no tests or docs written yet, but I wanted to get this merged in, as it's presence will not adversely affect anything if not used.

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