Add SideMenuPresentable and an implementation thant handles side menu presentation.

Riot/Modules/SideMenu/SideMenuPresentable.swift

@@ -0,0 +1,45 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+/// SideMenuPresentable absract a side menu presenter
+protocol SideMenuPresentable {
+    
+    /// Show side menu
+    func show(from presentable: Presentable, animated: Bool, completion: (() -> Void)?)
+    
+    /// Hide side menu
+    func dismiss(animated: Bool, completion: (() -> Void)?)
+    
+    /// Add screen edge gesture to reveal menu
+    @discardableResult func addScreenEdgePanGesturesToPresent(to view: UIView) -> UIScreenEdgePanGestureRecognizer
+    
+    /// Add pan gesture to reveal menu, like pan to reveal from a navigation bar
+    @discardableResult func addPanGestureToPresent(to view: UIView) -> UIPanGestureRecognizer
+}
+
+// MARK: Default implementation
+extension SideMenuPresentable {
+    
+    func show(from presentable: Presentable, animated: Bool) {
+        return self.show(from: presentable, animated: animated, completion: nil)
+    }
+    
+    func dismiss(animated: Bool) {
+        return self.dismiss(animated: animated, completion: nil)
+    }
+}