Add bulk import for Redirects

[lawrencedine]

A useful feature would be the ability to upload a file and have it create redirects. This is handy when migrating a site from an existing implementation to a new build in Orchard Core.

For SEO and usability reasons users coming in to URLs from the legacy site should be redirected to somewhere sensible within the new site, this can be pulled together by SEO staff in an excel document for example. Having to add these one by one takes a long time so having this ability would save many man hours.

[lawrencedine]

This is technically possible currently by using the Orchard Core deployment plan import but requires using the specific format of those JSON files which includes a lot of boilerplate for content items making it hard to pull together easily.