Group Folder permission is not aligned with Share Folder

[viggong]

Expected result:

• user can only upload file, but not able to change and modify.

Issue:

• Group folder do not have "Change" permission flag.

Cause:

• Group folder cannot able to create file only.
• Group folder's file can modify because permission has "Write" to upload a file.

Ultimate goal:

• same function as shared folder, but prevent user remove the folder itself.