Add legacy constants to the spec

Author: j-piasecki

codegenSpecs/NativeBlobUtils.js

@@ -18,6 +18,14 @@ export interface Spec extends TurboModule {
         SDCardDir: string,
         SDCardApplicationDir: string,
         DCIMDir: string,
+        // Android Only Legacy Constants
+        LegacyDCIMDir: string,
+        LegacyPictureDir: string,
+        LegacyMusicDir: string,
+        LegacyDownloadDir: string,
+        LegacyMovieDir: string,
+        LegacyRingtoneDir: string,
+        LegacySDCardDir: string,
     |};
 
     +fetchBlobForm: (options: Object, taskId: string, method: string, url: string, headers: Object, form: Array<any>, callback: (value: Array<any>) => void) => void;

ios/ReactNativeBlobUtil/ReactNativeBlobUtil.mm

@@ -95,6 +95,14 @@ - (NSDictionary *)constantsToExport
              @"SDCardDir": @"",
              @"SDCardApplicationDir": @"",
              @"DCIMDir": @"",
+             // Android only legacy constants 
+             @"LegacyDCIMDir": @"",
+             @"LegacyPictureDir": @"",
+             @"LegacyMusicDir": @"",
+             @"LegacyDownloadDir": @"",
+             @"LegacyMovieDir": @"",
+             @"LegacyRingtoneDir": @"",
+             @"LegacySDCardDir": @"",
              };
 }