Add navigation type to IRequest.
Merge branch 'feature/add-request-navigation-type' of https://github.com/Evgest/CefSharp into upstream-master
Move NavigationType into it's own class
Rename NavigationType to TransitionType (keeping inline with Cef API)
Change to using statement rather than namespace qualified declerations
Rename NavigationType property to TransitionType
Add xml comment to TransitionType
Change TransitionType to an unit enum
Add [Falgs] attribute as TransitionType can have multiple values
Import values from cef_transition_type_t (cef_types.h)
Rename some of the values (slightly friendlier names)
Add license disclaimer
Merge pull request #564 from amaitland/feature/transitionType

Add Transition Type to IRequest