computeCovariances(CovarianceBlocksToBeComputed::ALL) does not compute covariances on other state blocks than Frames and Landmarks

I guess it is the intended behaviour but maybe we should add another entry in the enumerate that makes the computeCovariances compute also other stateblock covariances (extrinsics, sensor biases)?

I think we discussed on a different way to specify covariance blocks to be computed.. but nothing agreed (#199)

Thanks for the link, I also think we should launch again this discussion indeed. But for now, sticking to the current implementation, I think that the computeCovariances(ALL) does not really comply with its implicit mission in that it only computes (cross)covariances of Frame and Landmark state blocks (I thought it was a bug at first). I can try an implementation that would also add to all_state_blocks vector the extrinsics and bias state blocks but I was wondering if I should create a new entry in the CovarianceBlocksToBeComputed enum or not.

I think nobody is using these enums.. I created GAUSS just for my use-case, apart from that, not used.