[what] adding new files
view-controller for place details
add-new-pic image
[what] bug: previously fetched data still kept and not cleared
[what] parent public method name changed
[what] add function for place details view-controller
[what] update place table view-controller
1. prepare place-details view controller and pass data to it
2. try to implement "swipe-to-delete" table cell by table-view delegate protocol
[what] update storyboard and project settings