[3.5][Feature][Ready] Export improvements

[tabacitu]

Done:

• added visibleInExport option to columns (default: true);
• bulk checkbox column is visibleInExport=false;
• actions column is visibleInExport=false;
• added visibleInTable option to columns (default: true); this is instead of the proposed and natural hidden option (proposed here [Question] Setting column visibility by default #1529), because we already have visibleInModal and the declarations should at least be consistent within columns, before they're consistent between columns and fields;

Todo:

• add visibleInTable to columns docs
• add visibleInModal to columns docs
• add visibleInExport to columns docs
• add orderable to columns docs

[tabacitu]

Merged into release PR. Can't wait to launch it :-)

[sharat-rhinofish]

The following column definition in the setupListOperation still shows the Internal Notes JSON column. How do I hide it completely from the List view, but have it searchable as shown in the searchLogic below?

        $this->crud->addColumn([
            'name' => 'internal_notes_json',
            'label' => 'Internal Notes',
            'type' => 'hidden',
            'visibleInTable'  => false, // no need to show this.
            'visibleInModal'  => false, // would make the modal too big
            'visibleInExport' => false, // not important enough
            'visibleInShow'   => true, // boolean or closure - function($entry) { return $entry->isAdmin(); }
            'searchLogic' => function ($query, $column, $search_term) {
                // Make Search Term in Upper case as we want to use this to search tracking numbers primarily
                // and we will force the tracking number to be uppercase while populating this field.
                $query->orWhere('internal_notes_json', 'like', '%' . strtoupper($search_term) . '%');
            }
        ]);