Introduced max_duration parameter

The Flickr API tends to not return all photos when the time window of a
search is too wide.
Updated args
Updated fields code + removed extra api calls

Updated the order of fields + added ‚accuracy’

Removed the extra api calls flickr.photos_geo_getLocation,
flickr.photos_getInfo and photoTags = flickr.tags_getListPhoto by
adding the ‚extras’ parameter to the main api call. Fetching photos has
just moved from walking to warping speed :-)