PropertyHandle :: DisableContext - Disable context actions for property handle

The function disables the context for the property handle (instance and property context). When the context is disabled, no context events are emitted. Context actions can still be executed. Events are still sent to event handlers installed by the application.

When the property handle refers to an operation path or transient property, the context of the result property will be disabled.

In order to reactivate the context one may call EnableContext().