Add BORDERLESS and GIF attachment flags to proto

protos/SignalService.proto

@@ -428,6 +428,8 @@ message SyncMessage {
 message AttachmentPointer {
   enum Flags {
     VOICE_MESSAGE = 1;
+    BORDERLESS    = 2;
+    GIF           = 3;
   }
 
   oneof attachment_identifier {

ts/textsecure.d.ts

@@ -575,6 +575,8 @@ export declare class AttachmentPointerClass {
 
   static Flags: {
     VOICE_MESSAGE: number;
+    BORDERLESS: number;
+    GIF: number;
   };
 
   cdnId?: ProtoBigNumberType;