never assigned to warnings

[justinwasilenko]

When loading up Command Terminal in Unity, these (harmless) warnings come up:
[Warning] [None] [CS0649] Field 'Terminal.InputContrast' is never assigned to, and will always have its default value 0

[Warning] [None] [CS0649] Field 'Terminal.ShowGUIButtons' is never assigned to, and will always have its default value false

[Warning] [None] [CS0649] Field 'Terminal.RightAlignButtons' is never assigned to, and will always have its default value false