fixed circular ref inside C::Admin::Config::OutreachPractices; added 'skip_wrapper' flag for shared resource practice/clinician/GP/etc lookup function when called as popup; re-arranged some resources urls

moved Devel::Cycle find_cycle() code from cgiapp_init to teardown, and made it permanently active for non-fastcgi requests - found and fixed many circular refs inside callback subs; new resources menu items; new file-uploader scripts