Use a single enum for or all

[beaufortfrancois]

May I suggest we use single Enum for "include", "exclude" and use it where needed?

Before:

enum SelfCapturePreferenceEnum {
  "include",
  "exclude"
};
enum SystemAudioPreferenceEnum {
  "include",
  "exclude"
};
enum SurfaceSwitchingPreferenceEnum {
  "include",
  "exclude"
};
enum MonitorTypeSurfacesEnum {
  "include",
  "exclude"
};

enum DisplayMediaIncludeOrExclude { "include", "exclude" };

typedef DisplayMediaIncludeOrExclude SystemAudioPreferenceEnum;
typedef DisplayMediaIncludeOrExclude SelfCapturePreferenceEnum;
typedef DisplayMediaIncludeOrExclude SurfaceSwitchingPreferenceEnum;
typedef DisplayMediaIncludeOrExclude MonitorTypeSurfacesEnum;

[jan-ivar]

Closing as a dup of #278