Add TSV & JSON data format support for CrawlPermissions export

[min2ha]

add TSV and JSON data format support for CrawlPermissions' filtered data export along with CSV and TSV at: Targets -> Reports (Open UKWA licences TAB)

[crarugal]

Looking at: https://dev.webarchive.org.uk/act/reports/search?crawlPermissionsStatus22=PENDING&p=0&exportType=&curator=-1&organisation=-1&startDate=09-08-2021&endDate=11-08-2021&action=search

the JSON and TSV export well, but one of the keys for the JSON export looks to be incorrect, as it's referencing the created date of the target, not the created date of the licence request, looking at the first record:

The TSV of the same record shows the requested date:

https://www.webarchive.org.uk/act/targets/16

The same is true when filtering by "Granted"; the JSON export is only showing the date the target was created and not the granted date: https://dev.webarchive.org.uk/act/reports/search?crawlPermissionsStatus22=PENDING&p=0&exportType=&action=searchGranted&curator=-1&organisation=-1&startDate=09-08-2021&endDate=11-08-2021

https://www.webarchive.org.uk/act/targets/143342

[min2ha]

thanks @crarugal, fix in progress

[crarugal]

Looking at: https://dev.webarchive.org.uk/act/reports/search?crawlPermissionsStatus22=PENDING&p=0&exportType=&action=searchGranted&curator=-1&organisation=-1&startDate=09-08-2021&endDate=11-08-2021

TSC export, when formatted to the appropriate date format, works well:

the exported JSON also has the correct keys, showing granted, or requested, or both: