Do not require all action parameters to be filled in

[ZdenekM]

Currently, when working offline (scene stopped), ARServer/AREditor can't get possible values of dynamic parameters (e.g. list of end effector IDs which is obtained using a querying robot API and because of this, it is now not possible to create a new action or to modify parameters of the existing one. It should be possible to omit those parameters and set them later when working online (scene started).

Maybe we could even allow the user not to fill in any (or even none) of the parameters so that he can decide on a specific value later.