* use the same upload component between the content and process service
* Create a BaseUploadServe inside the core
The AlfrescoUpload should extend the BaseUpload
* Improve the code
* Move the process service from the demo shell to form component
* Merge [ADF-917] added exlcluded files into app config to prevent special files
* Remove typo
* Fix import
* Fix FileModel import
* Fix Denys comment
* Fix unit test with the new path of UploadService
* Add missing implementation