v0.4.45

RobustAndOptimalControl v0.4.45

Diff since v0.4.44

Merged pull requests:

• Clarify inputs and outputs in the named feedback example (#126) (@mzaffalon)
• add lqi and lqi controller (#127) (@baggepinnen)
• generalize ff_controller and extended_controller to accept any system (#128) (@baggepinnen)