ef5f5c4db0
Add a version of cameraData() that returns a const pointer and mark it as a const operation. The assert in the non-const version of the function already enforces that a std::map::at() operation would always succeed so there is no change in operation from the non-const version. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>