d/survive: Add aim pose offset for index controllers
the red line starts at the aim pose and extends 1 meter in the direction. I have it pointing slightly up because if I extend my arm and point like a gun that would be the forward direction I look at
We should share this with the vive driver, so should we push this in auxiliary/vive/vive_config.h? It's technically just hardcoded values, not a config but conceptually it's configuration for the device.
Perhaps make it configurable via monado's config json, though who "owns" that config for initial writing it?