Add UI with native Chrome toolbar types

[cjh1315553730]

I try to modity cef lib in cef/include/internal/cef_types.h

///
/// Chrome toolbar types.
///
typedef enum {
CEF_CTT_NONE = 1,
CEF_CTT_NORMAL,
CEF_CTT_LOCATION,
} cef_chrome_toolbar_type_t;

expose the enum of cef_chrome_toolbar_type_t.CEF_CTT_NORMAL
let the cetsharp can use chrome tab

[amaitland]

You cannot modify the CEF headers that are provided with cefsharp.