post https://api.nortridgehosting.com/29.1/notifications
Adds a Notification and returns the created Notification
NLS_Type: 0 for Unattached, 1 for Contact, 2 for Loan, 3 for Collateral, 5 for Task.
NLS_Refno: For NLS_Type = 1, Cifno. For NLS_Type = 2, Acctrefno. For NLS_Type = 3, Collateral_Id. For NLS_Type = 5, Task_Refno.