Fixed some issues in SDK

Fixed following issues:
- Corrected the description field
- Updated EULA in installer with provided text (attached)
- Updated Installer Branding and Publisher to Citrix (Branding attached)
- Fixed a crash which was occurring when last command was not successful and user try to run Copy-SFItem again
- Fixed issue while transferring files/folders if user provided sharefile relative path (without specifying cloud mapped drive)