Update SamanageImporter.cs

Added some code to detect if the array was less than 15, if it was, it writes to the console in red that there was a problem then skips & continues to the next item.  It also writes to the log file.

Also, added a check to see if the required fields were empty or not.  If they are empty, it prints an error to console & to the log file then moves on to the next item.