Merge pull request #356 from SychevSP/fix-ts-def-FetchBlobResponse

info() method definition for FetchBlobResponse

index.d.ts

      */
     flush(): void;
     respInfo: RNFetchBlobResponseInfo;
+    info(): RNFetchBlobResponseInfo;
     session(name: string): RNFetchBlobSession | null;
     /**
      * Read file content with given encoding, if the response does not contains