Update to 0.6.2
-Updated to UE4.5
-Removed the need to SetInterfaceDelegate! Just adding the Component and
adding the LeapEventInterface is enough.
-Added Image policy flag support, actual image handling is still not
working at this time. You can query about image dimension and other
stats, just not the raw image.
Updated documentation to reflect newer options and added some documentation regarding gestures. Full image support is missing at this time.