Added upload function with PromiseProgress support

src/index.ts

@@ -3,6 +3,7 @@ export * from './aset';
 export * from './download';
 export * from './emitter';
 export * from './errors';
+export * from './http.ts';
 export * from './logger';
 export * from './math';
 export * from './misc';
@@ -10,4 +11,4 @@ export * from './objects';
 export * from './promise-progress';
 export * from './string';
 export * from './time';
-export * from './http.ts';
+export * from './upload.ts';