Enums.EditOperation enumeration

The EditOperation can be one of:

Constant	Description
`Enums.EditOperationUnknown`	`(-1)` Unknown operation
`Enums.EditOperationAdd`	`(0)` Add a feature
`Enums.EditOperationUpdate`	`(1)` Update a feature
`Enums.EditOperationDelete`	`(2)` Delete a feature