feat(lib, android, ios): permissions clean up, add id to files pack

ios/Classes/Models/NearbyCommand.swift

@@ -11,24 +11,27 @@ import MultipeerConnectivity
 
 class NearbyStartCommand {
     
-    init(senderName: String, filesCount: Int) {
+    init(id: String, senderName: String, filesCount: Int) {
+        self.id = id
         self.senderName = senderName
         self.filesCount = filesCount
     }
     
     static func fromUserInfo(userInfo: NearbyUserInfo)-> NearbyStartCommand? {
         if let name = userInfo.dictionary["name"] as? String,
-           let filesCount = userInfo.dictionary["filesCount"] as? Int
+           let filesCount = userInfo.dictionary["filesCount"] as? Int,
+           let id = userInfo.dictionary["id"] as? String
         {
-            return NearbyStartCommand(senderName: name, filesCount: filesCount)
+            return NearbyStartCommand(id: id, senderName: name, filesCount: filesCount)
         }
         return nil
     }
     
     func toDictionary() -> [String: Any] {
-        return ["name": senderName, "filesCount": filesCount]
+        return ["name": senderName, "filesCount": filesCount, "id": id]
     }
     
+    let id: String
     let senderName: String
     let filesCount: Int
 }

ios/Classes/NearbyManager.swift

@@ -129,6 +129,7 @@ class NearbyManager: NSObject {
             let device = NearbyDevicesStore.instance.find(for: receiverId)
             if let requireDevice = device {
                 let command = NearbyStartCommand(
+                    id: id,
                     senderName: self.device.name,
                     filesCount: paths.count
                 ).toDictionary()

ios/Classes/Store/NearbyFilesStore.swift

@@ -15,9 +15,11 @@ class NearbyFilesStore {
     private var senderName: String? = nil
     private var maxCount: Int = 0
     private var count: Int = 0
+    private var id: String? = nil
     
     func startReceiving(command: NearbyStartCommand) {
         self.paths.removeAll()
+        self.id = command.id
         self.senderName = command.senderName
         self.maxCount = command.filesCount
         self.count = 0
@@ -33,6 +35,7 @@ class NearbyFilesStore {
     }
     
     func clear() {
+        self.id = nil
         self.paths.removeAll()
         self.senderName = nil
         self.maxCount = 0
@@ -40,8 +43,9 @@ class NearbyFilesStore {
     }
     
     func toDartFormat(peerID: MCPeerID) -> String? {
-        if (senderName != nil) {
+        if (senderName != nil && id != nil) {
             let object = [
+                "id": id!,
                 "files":  paths.map { ["path": $0]},
                 "sender": ["id": peerID.displayName, "displayName": senderName!]
             ] as [String : Any]