v0.20.2

ModelPredictiveControl v0.20.2

Diff since v0.20.1

• added: print info on controller and estimator constraint softening (slack var. ϵ)
• reduce allocations LinMPC, NonLinMPC, MovingHorizonEstimator
• cleanup namespace with imports instead of usings

Merged pull requests:

• Changed: avoid collect in NonLinMPC and MovingHorizonEstimator objective and constraints (#46) (@franckgaga)
• changed: error handling one less alloc (#47) (@franckgaga)
• added: print info on controller and estimator constraints softening (#49) (@franckgaga)
• cleaning the namespace with imports instead of usings (#50) (@franckgaga)
• Namespace, NonLinMPC and MovingHorizonEsitimator cleanup (#51) (@franckgaga)