LIMS-1987: Add a 'Download CSV' button to the Summary page

[ndg63276]

JIRA ticket: LIMS-1987

Summary:

Adds the ability to download the Data Collection Summary page as a CSV file.

Changes:

• Move the setDispositionAttachment and setDispositionInline functions to the Utils.php file
• Add a button to the summary page, linking to the same API page but with /csv/1 to get a CSV file
• Get the current query parameters and attach it to the button so that the CSV matches what is on screen, apart from putting it all on one page
• Allow the sign handling to work with existing URL parameters
• Slightly change the order of columns in the DB query, so they match up better with the GUI display
• Generate a CSV file with automatic headings

To test:

• Go to any visit with data and click the "Summary" button to go to eg /dc/summary/visit/cm40607-5
• Check a button appears on the right with "Download CSV", and that when clicked it downloads a CSV of all the data processing runs shown (1 per data collection)
• Check all pages are in the CSV, not just the current page
• Edit some of the parameters at the top of the page, re-download the CSV, check it matches the parameters chosen
• Check if you go to /visits, you can still download a CSV of the visit (should be unchanged)