feat: add plugins management (#3909)

ios/Video/ReactNativeVideoManager.swift

@@ -0,0 +1,53 @@
+//
+//  ReactNativeVideoManager.swift
+//  react-native-video
+//
+
+import Foundation
+
+public class ReactNativeVideoManager: RNVPlugin {
+    private let expectedMaxVideoCount = 10
+
+    // create a private initializer
+    private init() {}
+
+    public static let shared: ReactNativeVideoManager = .init()
+
+    var instanceList: [RCTVideo] = Array()
+    var pluginList: [RNVPlugin] = Array()
+
+    /**
+      * register a new ReactExoplayerViewManager in the managed list
+     */
+    func registerView(newInstance: RCTVideo) {
+        if instanceList.count > expectedMaxVideoCount {
+            DebugLog("multiple Video displayed ?")
+        }
+        instanceList.append(newInstance)
+    }
+
+    /**
+     * unregister existing ReactExoplayerViewManager in the managed list
+     */
+    func unregisterView(newInstance: RCTVideo) {
+        if let i = instanceList.firstIndex(of: newInstance) {
+            instanceList.remove(at: i)
+        }
+    }
+
+    /**
+     * register a new plugin in the managed list
+     */
+    public func registerPlugin(plugin: RNVPlugin) {
+        pluginList.append(plugin)
+        return
+    }
+
+    public func onInstanceCreated(id: String, player: Any) {
+        pluginList.forEach { it in it.onInstanceCreated(id: id, player: player) }
+    }
+
+    public func onInstanceRemoved(id: String, player: Any) {
+        pluginList.forEach { it in it.onInstanceRemoved(id: id, player: player) }
+    }
+}