Adapting to multiple processor motion 285

See merge request !339

Merge branch 'adapting-to-multiple-processor-motion-285' of https://gitlab.iri.upc.edu/mobile_robotics/wolf_projects/wolf_lib/wolf into adapting-to-multiple-processor-motion-285

Resolve "Problem::check() more exhaustive"

Closes #289

See merge request !340

Resolve "set frame to non-estimated removes its state blocks"

Closes #268

See merge request !347

Show where the factor's SB's where found

Resolve "StateBlock perturbation helper function for gtests"

Closes #275

See merge request !345