Characterizes the mapping between RawAxis2D data read from physical inputs and how that data should be intereted as buttons depending on specific control schemes.
OVRControllerBase instances each contain one instance of this type, the mappings within which are overridden by the ConfigureAxis2DMap implementation of the descendant type. The mappings within can also be overwritten after initialization to enable customized input mapping (such as by the user from a settings screen).