Top level deeplink handling (#1660)

* Handle link opening on the top most levels and prepare for percolating them throughout the app
* Add support for a custom app scheme
* Add specific AppRoute parsers.
* Integrate custom scheme in the AppRouteURLParser
* Switch to `element://call` and cleanup route parsing

ElementX/Sources/FlowCoordinators/RoomFlowCoordinator.swift

@@ -83,7 +83,7 @@ class RoomFlowCoordinator: FlowCoordinatorProtocol {
             stateMachine.tryEvent(.dismissRoom, userInfo: EventUserInfo(animated: animated))
         case .invites:
             break
-        case .genericCallLink:
+        case .genericCallLink, .oidcCallback:
             break
         }
     }

ElementX/Sources/FlowCoordinators/UserSessionFlowCoordinator.swift

@@ -121,6 +121,8 @@ class UserSessionFlowCoordinator: FlowCoordinatorProtocol {
                 self.stateMachine.processEvent(.showInvitesScreen, userInfo: .init(animated: animated))
             case .genericCallLink(let url):
                 self.navigationSplitCoordinator.setSheetCoordinator(GenericCallLinkCoordinator(parameters: .init(url: url)), animated: animated)
+            case .oidcCallback:
+                break
             }
         }
     }