eduVPN client

-Fix crash when deleting servers -Prevent disconnect / connect cycles when device is locked

Handle sleep-wake cycles better #491 Avoid crypto errors (103) while sending packets #481 Fix no-internet issues #485 Move project to use Swift Package Manager instead of Cocoapods #95

-Make connected time consistent with transferred data count #319 -Fix ASWebAuthenticationSession failure when clicking on a session expiry notification #469 -When deleting a single secure internet server, app should automatically show the search screen -Fix when 'Renew Session' button is shown #460 -Ensure app works on the iPad -Ensure Settings and Help buttons are visible on the iPad -Support for minisign pre-hashed signatures #427 -Add server API events to the log #424 -Show 'Renew Session' whenever it's possible to renew #430 -Update TunnelKit -Use TunnelKit as Swift Package Manager package -Avoid writing client certificate and private key to disk -Not upstreamed: Handle ENOBUFS errors -Notify on session expiry #442 -Avoid staggered alerts related to session expiry #445 -Show privacy statement on launch #454 -Allow access to privacy statement from Settings / Preferences -Update list of available secure internet servers on startup #447 -APIv3: Use prefer_tcp, fix accept header for '/connect' -Support for net_gateway / net_gateway_ipv6 in OpenVPN #440

-Make fetching of info.json cancellable #415 -Handle wrong scheme when pasting a custom server URL #407 -Make "Connect using TCP only" work with APIv3 -Suppress 'Renew Session' for 30 mins after authentication time #417 -WireGuard added

-fix: renewal button -expiry notification -import your own .ovpn (limited functionality)

-while connecting a 'disconnect' button is available -crash fix on iOS 12 -crash fix when clicking on gear-button

Bug fixes and improvements, see https://github.com/eduvpn/ios/blob/master/CHANGES.md