Bug 21063: Add "Columns settings" for ILL

Bug 21063: Add "Columns settings" for ILL

This patch adds the "Columns settings" values for the illrequests table

Signed-off-by: Niamh.Walker-Headon@it-tallaght.ie

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Bug 21063: Add ability to show / hide columns

This patch adds the "Column visibility" functionality to the main ILL
request list table.

To test:
- Ensure ILL is enabled and you have some requests
- Apply patch
- From the "Koha administration screen, select "Configure columns"
- In the "Columns settings" page:
  => TEST: Ensure an "Interlibrary loans" category exists
  - Upon expanding the category:
  => TEST: Ensure a table is displayed showing columns
  => TEST: Ensure the "action" column has "Cannot be toggled"
  pre-selected
  => TEST: Change values for columns and ensure they're saved
- From the main staff menu, select "ILL requests"
- In the table:
  => TEST: Click the "Column visibility" button and ensure a modal
  containing all columns (except "Action")  is displayed
  => TEST: Select various columns and ensure they are shown and hidden

Signed-off-by: Niamh.Walker-Headon@it-tallaght.ie

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Bug 21063: (follow-up) Add user ID to column list

As originally specified in bug 20883, there is a requirement for some
users to be able to display the user ID (borrowernumber) in the UI.

This patch adds that ability to this bug, 20883 will be marked as a
duplicate of this one.

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Bug 21063: (follow-up) Amendments for rebase

Modify to add the additional changes required now we're rebasing on top
of the dependency tree. Includes adding additional columns (and changing
indexes for search/filter where appropriate)

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Bug 21063: (follow-up) Add comments to column list

Since this bug is now dependent on Bug 18591 (Allow an arbitrary number
of comments on ILLs) we need to add the comments column to this table
and the list of selectable columns. This patch does this.

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Bug 21063: (follow-up) Sanitize datatable data

This mitigates bug 22268 by sanitizing data prior to display using the
built in $.fn.dataTable.render.text() helper provided by Datatables.

The patch was added here, rather that in 22268 since this is the bug
that introduced the problem by increasing the number of fields that are
displayed in the table, some of which could contain user provided
malicious data

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>