add chunked_upload and commit_chunked_upload api

Author: [email protected]

HsDropbox/.flexLibProperties

@@ -3,6 +3,8 @@
   <includeClasses>
     <classEntry path="org.hamster.dropbox.models.SharesInfo"/>
     <classEntry path="org.hamster.dropbox.models.CopyRef"/>
+    <classEntry path="org.hamster.dropbox.services.ChunkedUploadSession"/>
+    <classEntry path="org.hamster.dropbox.models.ChunkedUpload"/>
   </includeClasses>
   <includeResources/>
   <namespaceManifests/>