Enums.PortalMode enumeration

The PortalMode can be one of:

Constant	Description
`Enums.PortalModeUnknown`	`(-1)` Unknown portal mode.
`Enums.PortalModeMultiTenant`	`(0)` Multi-tenant mode.
`Enums.PortalModeSingleTenant`	`(1)` Single-tenant mode.