RM_5938.patch - Storage Manager Documentation

PFA patch. I have added the "Storage Manager" section under the "Management Basics" topic in the documentation. Also, I have added a note referring to storage manager in the "Backup dialog", "Backup Globals Dialog", "Backup Server Dialog" and "Import and export" sections. Lastly added a bullet in the "Menu bar" section under "Tools Menu". Let me know if any anything else needs to be added.

Thanks,