Send and receive polls with latest protocol version

protos/SignalService.proto

@@ -365,7 +365,8 @@ message DataMessage {
     CDN_SELECTOR_ATTACHMENTS = 5;
     MENTIONS = 6;
     PAYMENTS = 7;
-    CURRENT = 7;
+    POLLS = 8;
+    CURRENT = 8;
   }
 
   message GiftBadge {

ts/test-electron/backup/non_bubble_test.preload.ts

@@ -566,8 +566,9 @@ describe('backup/non-bubble messages', () => {
         timestamp: 1,
         readStatus: ReadStatus.Read,
         seenStatus: SeenStatus.Seen,
-        supportedVersionAtReceive: 5,
-        requiredProtocolVersion: 6,
+        supportedVersionAtReceive:
+          Proto.DataMessage.ProtocolVersion.CURRENT - 2,
+        requiredProtocolVersion: Proto.DataMessage.ProtocolVersion.CURRENT - 1,
       },
     ]);
   });

ts/textsecure/SendMessage.preload.ts

@@ -679,6 +679,7 @@ class Message {
       create.allowMultiple = Boolean(this.pollCreate.allowMultiple);
       create.options = this.pollCreate.options.slice();
       proto.pollCreate = create;
+      proto.requiredProtocolVersion = Proto.DataMessage.ProtocolVersion.POLLS;
     }
 
     this.dataMessage = proto;